9 Annexes

9.1   TEITAC Organizational Members List
9.2   Related Federal Legislation Protecting the Rights of Individuals with Disabilities
9.3   Charter
9.4   Operating Protocols

9.1   TEITAC Organizational Members List

Andrew Kirkpatrick, Adobe Systems, Inc.
Greg Pisocky, Adobe Systems, Inc.
Thomas Wlodkowski, America Online (AOL)
Donald Evans, America Online (AOL)
Jenifer Simpson, American Association of People with Disabilities
Andrew Imparato, American Association of People with Disabilities
Melanie Brunson, American Council of the Blind
Marlaina Lieberg, American Council of the Blind
Bradley Hodges, American Foundation for the Blind
Paul W. Schroeder, American Foundation for the Blind
Dave Michael, Apple, Inc.
Mary Beth Janes, Apple, Inc.
Randy Marsden, Assistive Technology Industry Association
Jessica Brodey, Assistive Technology Industry Association
Deborah V. Buck, Association of Technology Act Programs
Brenda Dawes, Association of Technology Act Programs
Ellen Blackler, AT&T
Susan P. Mazrui, AT&T
Paul R. Michaelis, Avaya, Inc.
Aubrey Woolley, Canon USA, Inc.
Karen Peltz Strauss, Communication Service for the Deaf
K. Dane Snowden, CTIA - The Wireless Association
Matthew Gerst, CTIA - The Wireless Association
Robert C. Nerhood, Dell, Inc.
Linda Rodden Dell, Inc.
Jennifer Dexter, Easter Seals
Inmaculada Placencia Porrero, European Commission
Martina Sindelar, European Commission
Brenda Battat, Hearing Loss Association of America
Katie Lee, Hearing Loss Association of America
Bruce Maguire, Human Rights and Equal Opportunity Commission (Australia)
Andi Snow-Weaver, IBM
Phill Jenkins, IBM
Jim Tobias, Inclusive Technologies
Mary Frances Laughton, Industry Canada
Chuck Letourneau, Industry Canada
Rex C. Lint, Information Technology Association of America
Olga Grkavac, Information Technology Association of America
Ken J. Salaets, Information Technology Industry Council
Michael Takemura, Information Technology Industry Council
Hajime Yamada, Japanese Standards Association
Shuji Morii, Japanese Standards Association
Laura Ruby, Microsoft Corporation
Sean Hayes, Microsoft Corporation
Diane C. Golden, National Association of State Chief Information Officers
Eric B. Perkins, National Association of State Chief Information Officers
Jared Smith, National Center on Disability and Access to Education
Cyndi Rowland, National Center on Disability and Access to Education
Curtis Chong, National Federation of the Blind
James McCarthy, National Federation of the Blind
Debbie Cook, National Network of Disability and Business Technical Assistance Centers
Randy Dipner, National Network of Disability and Business Technical Assistance Centers
Anthony Jasionowski, Panasonic Corporation of North America
Paul G. Schomburg, Panasonic Corporation of North America
Leslie Hall, Paralyzed Veterans of America
Kate Walser, SRA International, Inc.
Michael Weinstein, SRA International, Inc.
Peter Korn, Sun Microsystems, Inc.
Michele Budris, Sun Microsystems, Inc.
Mary Brooner, Telecommunications Industry Association
David Dzumba, Telecommunications Industry Association
Michael Paciello, The Paciello Group, LLP
Brian Landrigan, The Paciello Group, LLP
Gregg C. Vanderheiden, Trace Research and Development Center
Gottfried Zimmermann, Trace Research and Development Center
Whitney Quesenbery, Usability Professionals’ Association
Sarah J. Swierenga, Usability Professionals’ Association
Lisa Fairhall, U.S. Access Board
Timothy P. Creagan, U.S. Access Board
David Baquis, U.S. Access Board
Bruce Bailey, U.S. Access Board
Aromie Noe, U.S. Access Board
David Capozzi, U.S. Access Board
James J.  Elekes, M.Ed, MPA, CPM, Access Board liaison
Allen Hoffman, U.S. Department of Homeland Security
William Peterson, U.S. Department of Homeland Security
Robert Baker, U.S. Social Security Administration
Mike Fratkin, U.S. Social Security Administration
Larry Goldberg, WGBH National Center for Accessible Media
Geoff Freed, WGBH National Center for Accessible Media
Judy Brewer, World Wide Web Consortium/Web Accessibility Initiative
James M. Allan, World Wide Web Consortium/Web Accessibility Initiative

9.2 Related Federal Legislation Protecting the Rights of Individuals with Disabilities

Sections 508 and 255 are not the only Federal legislation intended to ensure access to ICT by individuals with disabilities.  A number of Federal laws preceded this legislation, setting the stage for a barrier-free information age. Even where there is overlap with Sections 255 or 508, other Federal legislation establishing protections for people with disabilities remain in full force.  The Committee could not reach consensus on if this additional information should be included in the report as there was concern it could cause confusion on how Sections 255 and 508 should be implemented. There was also concern by one member that it would imply agreement with each of these statues. While the Committee did take these statues into consideration, there was no specific discussion on each of them.

Rehabilitation Act of 1973 - The Rehabilitation Act of 1973, discussed briefly above, was the first piece of legislation designed to ensure that Federal agencies, its contractors, and its financially assisted programs and activities would provide access to their employees and beneficiaries. Section 501, for example, requires Federal employers to accommodate the individual access needs of their employees with disabilities when necessary for those employees to carry out the functions of their jobs, unless providing those accommodations would impose an undue hardship.  Section 503 imposes similar access obligations on federal contractors, and Section 504 requires the provision of reasonable accommodations when needed to enable individuals with disabilities to participate in or benefit from federally assisted programs.  Section 508’s requirements for accessible electronic and information technology facilitates compliance with the mandates of these various sections by providing federal agencies with some of the tools needed to provide these accommodations. Section 508 goes further, however, requiring federal departments or agencies that develop, procure, maintain, or use electronic and information technology to make sure that all such technology provides comparable access to and use of information and data, regardless of who may use it.  Similarly, the availability of accessible information and data required under section 508 will assist Federal agencies charged with providing information to the public under Section 504 of the Rehabilitation Act.

Telecommunications for the Disabled Act - The first federal law to specifically address the need for access to telecommunications by individuals with disabilities was the Telecommunications for the Disabled Act of 1982 (TDA).  Pub. L. No. 97-410, codified as amended at 47 U.S.C. §610 (1988). TDA directed that all “essential” telephones, both inside and outside the Federal government, be hearing aid compatible telephones and permitted telephone companies in the states to continue offering specialized customer premises equipment to individuals with disabilities at reasonable prices subsidized by their telephone services.  In the TDA, Congress, already envisioning the dawn of major technological changes, proposed a new national policy to ensure access for people with disabilities as these changes occurred.  This policy was announced in the House Report accompanying the bill:  "[M]aking the benefits of the technological revolution in telecommunications available to all Americans, including those with disabilities, should be a priority of our national telecommunications policy." H. Rep. No. 888, 97th Cong., 2d Sess. 5 (1982).  Setting the stage for Section 508 as well as other pieces of Federal legislation, the legislative history of the TDA revealed a new understanding by Congress that the costs to society of denying such access, by "depriv[ing] many individuals of the opportunity to have gainful employment" and "impair[ing] . . . the quality of life for disabled Americans" far exceeded the costs of ensuring such access.  Id. at 4.

Hearing Aid Compatibility Act - The Telecommunications for the Disabled Act of 1982 was followed by two pieces of legislation in 1988 that again addressed the telecommunications access needs of individuals who are deaf and hard of hearing.  The first of these, the Hearing Aid Compatibility Act, Pub. L. No. 100-394, codified at 47 U.S.C. §610 (1988), created a mandate for nearly all telephones made or imported into the United States after August 16, 1989, to be hearing aid compatible.  Various FCC proceedings that followed produced rules that are intended to ensure nearly ubiquitous access to landline and wireless telephones by hearing aid wearers early in the twenty-first century.

Telecommunications Accessibility Enhancement Act - The second law enacted in 1988 was the Telecommunications Accessibility Enhancement Act (TAEA), Pub.  L. No. 100-542, codified at 40 U.S.C. §762 (1988).  TAEA created a Federal relay system for calls to, from, and within the Federal government.  It also directed Congressional members to acquire TTYs for their offices, created a Federal directory of TTY numbers, and directed the FCC to complete an inquiry into the establishment of a nationwide interstate telecommunications relay system. TAEA’s provisions bear a relationship to the present Section 508 in that it was designed to specifically reduce technological barriers for Federal employees.  Toward this end, the Senate’s Report on TAEA explained "[i]t has long been recognized that all employers should take whatever steps possible to fully integrate persons with physical impairments into the work force." S. Rep.  No. 464, 100th Cong., 2d Sess. 2 (1988).  Again, Congress concluded that the costs of installing accessible equipment and providing accessible telecommunications services were outweighed by the overriding benefits that such access created.

Americans with Disabilities Act -The Americans with Disabilities Act (ADA), Pub. L. No. 101-336, codified at 42 U.S.C. §12101, et. seq., was passed in 1990.  This landmark legislation created new and comprehensive civil right protections for individuals with disabilities in the private sector. Its provisions under Title IV mandate the provision of round-the-clock nationwide telecommunications relay services, designed to make our nation’s telecommunications networks more accessible to people who are deaf, hard of hearing, or speech impaired. Other parts of the ADA led to requirements for certain forms of telecommunications access, including requirements for hearing aid compatibility, volume control, and TTYs.  They also provide standards on reach ranges, for access to fixed equipment control consoles and operable parts.

Television Decoder Circuitry Act of 1990 - The Television Decoder Circuitry Act, 47 U.S.C. §§303(u); 330(b), was passed in 1990. It requires all television receivers with picture screens 13 inches or larger to contain built-in decoder circuitry designed to display closed captioned television transmissions.  The FCC has also applied this mandate to computers equipped with television circuitry that are sold together with monitors that have viewable pictures at least thirteen inches in diameter, digital television sets that have screens measuring 7.8 inches vertically (approximately the equivalent of a 13-inch diagonal analog screen), and stand-alone DTV tuners and set top boxes, regardless of the screen size with which these are marketed or sold.  The Act also contains a provision directing the FCC to ensure that closed captioning services continue to be available to consumers as new video technology is developed.

Section 713 of the Communications Act - Section 713 of the Communications Act, added by the Telecommunications Act of 1996, 47 U.S.C. §613, requires video programming distributors to make their television programming accessible through the provision of closed captioning.  In 1998, the FCC released a detailed schedule of captioning requirements that already require closed captioning on 100 percent of new, nonexempt English video programming.  Other rules are in place for older and Spanish language programming.  Exemptions are available for certain defined situations, for example, when the programming is primarily textual or primarily non-vocal music, and when compliance with the rule would result in an “undue burden,” meaning significant difficulty or expense.

Help America Vote Act -The Help America Vote Act (HAVA, Pub.L. 107-252) was passed in 2002. The relevant part of the law is "Subtitle A, Section 301 Voting System Standards (3) Accessibility for Individuals with Disabilities. The voting system shall:  (A) be accessible for individuals with disabilities, including non-visual accessibility for the blind and visually impaired, in a manner that provides the same opportunity for access and participation (including privacy and independence) as for other voters."

9.3   Charter

1. PURPOSE:  This charter establishes the “Telecommunications and Electronic and Information Technology Advisory Committee” (Committee) for the Architectural and Transportation Barriers Compliance Board (Access Board) in accordance with the Federal Advisory Committee Act (FACA), 5 U.S.C. App. 2, and the administrative guidelines issued by the General Services Administration's Committee Management Secretariat, 41 C.F.R. Part 101 6.

2. AUTHORITY:  The establishment of the Committee is in the public interest and supports the Access Board in performing its duties and responsibilities under the Telecommunications Act of 1996 (47 U.S.C. § 255) and the Rehabilitation Act Amendments of 1998 (29 U.S.C. § 794 (d)).

3. SPONSOR AND OFFICE SUPPORT:  The Committee shall report to the Access Board as its sponsor. Support services shall be provided or arranged by the Access Board.

4. SCOPE AND OBJECTIVES:  The Committee shall advise the Access Board on issues related to revising and updating accessibility guidelines for telecommunications equipment and customer premises equipment and accessibility standards for electronic and information technology. The Committee shall act solely in an advisory capacity to the Access Board and shall neither exercise any program management responsibility nor make decisions directly affecting the matters on which it provides advice.

5. DUTIES AND FUNCTIONS:  Consistent with the scope and objectives described in paragraph 4 of this charter, the Committee is authorized to make recommendations to the Access Board on:

(a) types of products to be covered;
(b) barriers to the use of such products by persons with disabilities;
(c) solutions to such barriers, if known, and research on such barriers;
(d) harmonization with international standards efforts in this area; and
(e) contents of the revised and updated guidelines and standards.

6. MEMBERSHIP:  The membership will be balanced in terms of points of view represented, including Federal agencies; the telecommunications and electronic and information technology industry, including manufacturers; organizations representing the access needs of individuals with disabilities; representatives from other countries and international standards setting organizations; and other organizations affected by the accessibility guidelines and standards. Representatives of each of these interests shall be selected by the Chairperson of the Access Board and appointed as Committee members for the duration of the Committee’s existence.

7. SUBCOMMITTEES:  The Committee may form subcommittees for any purpose consistent with this charter. The subcommittees shall report to the Committee.

8. CHAIRPERSON:  The Chairperson of the Committee shall be appointed by the Chairperson of the Access Board. The Chairperson of any subcommittees shall be appointed by the Chairperson of the Committee.

9. MEETINGS:  Meetings shall be held as necessary at the call of the Chairperson of the Committee, with the approval of the designated Federal official. Meetings shall be open to the public and timely notice of each meeting shall be published in the Federal Register. Meetings shall be conducted and records of the proceedings kept, as required by applicable laws and regulations.

10. COMPENSATION OF MEMBERS:  The Access Board will not compensate Committee members for their service. Committee members will be responsible for their own expenses for participation in the Committee, except that the Access Board may pay for a member’s reasonable travel expenses if the member certifies a lack of adequate financial resources to participate in the

Committee and the Access Board determines that the member’s participation in the Committee is necessary to assure adequate representation of the various interests potentially affected by the accessibility guidelines and standards.

11. ESTIMATED ANNUAL COSTS:  The costs for the Committee, excluding the cost of Board staff, are estimated at $105,000. No government staff positions are being allocated to the Committee on a full time basis.

12. DURATION:  The Committee will terminate two years from the date of filing this charter with the appropriate Committees of Congress, unless the Committee is renewed or terminated sooner.

November 9, 2005, Board Approval Date
April 27, 2006, GSA Review Date
July 30, 2006, Date Filed with Congress

9.4   Operating Protocols

Introduction
The goal of this advisory committee is to make recommendations to the Access Board regarding accessibility standards for electronic and information technology and accessibility guidelines for telecommunications equipment covered by section 508 of the Rehabilitation Act Amendments of 1998 and Section 255(e) of the Telecommunications Act of 1996. The recommendations should address issues such as:  types of technologies to be covered by the standards and guidelines; barriers to the use of such technologies by persons with disabilities; solutions to such barriers, if known, and research on such barriers; contents of the standards and guidelines; and harmonization with international standards efforts in this area.

The advisory committee process is intended to facilitate discussion among its members. Participants enter the proceedings in good faith in an effort to reach a speedy and amicable set of recommendations on a variety of issues. Participants agree to participate fully and openly in the discussions with a sincere desire to explore alternatives and solutions to a variety of concerns. All members agree to exchange information to the fullest extent practicable and agree not to divulge information shared by others in confidence. Nothing in these protocols shall prevent a member from making public or using its own proposals in any future proceeding.

Participation

1. Interests Represented. The committee will be composed of a cross section of organizations representing a variety of interests regarding telecommunications and electronic and information technology access.
2. The Advisory Committee. The committee will be composed of those organizations appointed to serve by the Chairperson of the Access Board. Each member may designate an alternate member(s) representing the same interest as the designated member. The members will fully brief the alternates on the progress of the discussions and will give them full authority when they serve on the committee. Alternates are encouraged to attend committee meetings. No person may represent more than two groups during the same meeting. The Chairperson or co-chairs of the committee shall be appointed by the Chairperson of the Access Board.
3. Attendance at Meetings. Each committee member will make a good faith effort to attend each full advisory committee session. Attendance in person is preferred, but if that is not possible, attendance may be by teleconference or by videoconference. If a given organization is unrepresented for two consecutive meetings, the Chairperson or co-chairs of the committee has the discretion to ask the Chairperson of the Access Board to remove that organization from the committee.
Committee members may be accompanied by other advisors as that member believes are appropriate to represent his/her interest. Technical advisors and other persons may speak openly during discussions. Should the open discussion become unwieldy, any member may request a more formal process in which advisors are recognized to speak only by the Chairperson or co-chairs of the committee.
4. Additional Committee Members. Additional committee members shall be added solely to provide representation of stakeholder interests not already represented on the committee. Committee members may only be added during the first and/or second meeting of the committee. Additional committee members may join the committee by a vote of three-quarters of the committee. Discussion and voting on additional committee members shall be conducted only once during each of the first two committee meetings. New committee members shall begin service upon completion of voting for proposed new committee members.
5. Constituents’ Interests. Committee members are encouraged, to the extent possible, to communicate with other organizations similarly situated. Committee members are expected to make a good faith effort to represent the concerns and interests of their constituents and to ensure that any recommendation developed by the committee is acceptable to the organization that the committee member represents.
6. Right to Withdraw. Any member may withdraw from the committee at any time without prejudice.
7. Subcommittees. Subcommittees may be formed to address specific issues within the scope of the advisory committee’s responsibilities. Subcommittees are open to anyone although balance among interests should be maintained. Subcommittees may meet at the same time the full committee meets, or in between full committee meetings. However, subcommittees are encouraged to meet in between full committee meetings. Subcommittees may offer recommendations to the committee. However, subcommittees are not authorized to make recommendations for the committee. In subcommittees, anyone in attendance can participate. Subcommittee leadership and methods of work shall be decided by the subcommittee. Subcommittee meetings shall be conducted in a manner that is accessible to all those in attendance. Chairs of subcommittees shall be members of the committee. Subcommittees shall publish their meeting schedules and other work mechanisms in advance to the public.

Meetings

8. FACA. The advisory committee meetings will be conducted under the rules of the Federal Advisory Committee Act (FACA).
9. Open Meetings. Advisory committee meetings will be announced in the Federal Register prior to the meeting and, consistent with FACA requirements, will be open to the public. During each day of the advisory committee meetings, there shall be time for public comment.
10. Quorum. A quorum of two thirds of the committee membership will be required to conduct substantive business of the committee. In the absence of a quorum, those present will proceed with committee work, but may not make substantive committee recommendations.
11. Minutes. Minutes of the committee meetings will be prepared by the Designated Federal Official (DFO) and distributed as expeditiously as possible to the committee and will be ratified by the committee at its next meeting. A progress report of subcommittee meetings shall be prepared and sent by subcommittee chairs to committee members prior to the next meeting.
12. Media Announcements. No member will make unauthorized announcements to the media or hold discussions with the media characterizing the position of the committee (until recommendations are final) or ascribing the position of any member, even if that member withdraws from the committee.
13. Agendas. Meeting agendas will be developed by the DFO in consultation with the Chairperson or co-chairs of the committee.
14. Ad Hoc Meetings. An ad hoc meeting break can be requested by any committee member at any time. Ad hoc meetings will not be considered open meetings. Members are asked to keep such ad hoc meetings to a minimum and estimate the time needed. Proposals made and positions taken by any participant during ad hoc meetings shall be confidential and shall not be used in any future regulatory or legal proceedings.
15. Accessibility of Meetings. Full committee and subcommittee meetings will be held in accessible locations and provide for communications and print access. Persons attending committee meetings are requested to refrain from using perfume, cologne, and other fragrances for the comfort of other participants.
16. Schedule. Advisory committee meetings will be held approximately once each four to six weeks as determined by the committee. The committee will submit a report with final recommendations to the Access Board at a future meeting of the Access Board.
17. Discontinue if Unproductive. The Access Board in consultation with the committee Chairperson or co-chairs may discontinue the advisory committee meetings at any time if the meetings do not appear productive.
18. Written Materials. Written materials that are distributed to the committee should be in print and accessible electronic format. Persons who distribute written materials during committee meetings should provide 100 print copies and sufficient copies in a variety of accessible formats, including, but not necessarily limited to large print, Braille and accessible electronic format. Persons intending to provide written materials should contact the DFO for detailed instructions on the requirements for accessible formats and the number of accessible copies. If written materials to be distributed to the committee are provided to the Access Board seven days in advance of a meeting the Access Board will provide sufficient print and accessible format copies.

Recommendations

19. Product of Advisory Committee Meetings. The intended product of the advisory committee is a set of recommendations in the form of a written statement, which should be signed by all committee members. The recommendations will be used by the Access Board in developing a proposed rule for accessibility standards for electronic and information technology and for accessibility guidelines for telecommunications products.

Committee meetings should be conducted and work performed in a spirit of collegiality and consensus should be achieved to the extent possible. Nothing in these protocols shall require any member to agree on any specific issue. The purpose of the committee is to give advice and recommendations, not make decisions. Members should strive to find common ground and articulate it in its recommendations. Any committee member may prepare a minority report for the record. Minority reports will be incorporated into the committee’s final report.

Protocol Amendments

20. The members may amend the protocols at any time.


Approved, September 27, 2006


Notes

1   Section 255 covers telecommunications products and services.  Section 508 covers electronic and information technologies (E&IT).  For convenience and clarity, wherever these two categories are taken together, we are using the common term “information and communication technologies,” or ICT.  In addition, we will use the word “product” to refer to both products and services, whether purchased, leased or developed “in-house.”

2   The Access Board’s Guidelines cover customer premises equipment and telecommunications equipment, but do not address services.

3   Section 508 requires the Access Board to review and update its regulations periodically. Similarly, Section 255 requires the Access Board to review and update its Section 255 guidelines periodically. Under both statues the timing of the review is left up to the Access Board.

4   The phrase “accessible to and usable by” appears in Section 255 but not in Section 508.  In using the entire phrase or the word “usable” in this report, we do not intend to add any obligation concerning Section 508, nor do we imply the full meaning of the term as used in the field usability or human factors, which is outside the scope of both regulations.  In its Telecommunications Act Accessibility Guidelines the Access Board defined “usable” as follows:  “Means that individuals with disabilities have access to the full functionality and documentation for the product, including instructions, product information (including accessible feature information), documentation, and technical support functionally equivalent to that provided to individuals without disabilities.”

5   We recognize that many stakeholders will not use the “raw” form of the regulations, but will create tools to help them focus on their specific accessibility obligations.

6   Section 3 of the Act defines "telecommunications" as "the transmission, between or among points specified by the user, of information of the user's choosing, without change in the form or content of the information as sent and received."  The FCC adopted a Report & Order (FCC 99-181) on July 14, 1999, which determined that adjunct-to-basic services should also be covered by Section 255.  Adjunct-to-basic services include such services as call waiting, speed dialing, call forwarding, computer-provided directory assistance, call monitoring, caller identification, call tracing, and repeat dialing.  The FCC also asserted its ancillary jurisdiction to extend the accessibility requirements to providers of voicemail and interactive menu service, as well as to manufacturers of equipment that performs those functions.  On May 31, 2007, the FCC adopted a Report & Order (FCC 07-110) to extend the disability access requirements to providers of “interconnected voice over Internet Protocol (VoIP) services,” and to manufacturers of specially designed equipment used to provide those services. 

7   The full FCC analysis of the readily achievable standard is contained at In the Matter of Implementation of Sections 255 Report and Order and Further Notice of Inquiry, WT Dkt 96-198, FCC 99-181, 16 FCC Rcd 6417 (September 29, 1999), ¶¶43-74; 47 CFR §§6.3(g); §7.3(g).

8   These examples are not exhaustive, nor do they indicate specific recommendations.

9   http://www.w3.org/WAI/WCAG20/quickref

10   We also considered additional information for user activities, product characteristics and product types relevant to the provisions, but were not able to complete this work.

11   These categories of test methods were used in the Accessibility and Usability section of IEEE P1583-Voting System Standards. This draft standard was balloted, but then abandoned in favor of the US Election Assistance Commission Voluntary Voting System Guidelines 2005.

12   Section 255 refers not to assistive technology but to “existing peripheral devices or specialized CPE commonly used by individuals with disabilities.”

13   “Making Regulations Readable,” retrieved from http://www.archives.gov/federal-register/write/plain-language/readable-regulations.html

14   Webinar materials:  Why Plain Language is Critical for Standards, retrieved from http://teitac.org/wiki/Theme:Usability_of_the_Standard:Redish

15   A full list of references and resources can be found on the TEITAC wiki.  http://teitac.org/wiki/Theme:Usability_of_the_Standards

16   Web Content Accessibility Guidelines 2.0, http://www.w3.org/TR/2007/WD-WCAG20-20071211/, 11 December 2007, W3C Working Draft.  Latest version at http://www.w3.org/TR/WCAG20/.  Copyright, 2007 W3C (MIT, ERCIM, Keio) http://www.w3.org/Consortium/Legal/2002/copyright-documents-20021231.