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Web Content Accessibility Guidelines (WCAG)

Texas A&M University - Corpus Christi follows the standards stated in Texas Administrative Code, Rule 206.70 (TAC 206.70) for websites and other EIR to comply with WCAG 2.0 AA standards and additional requirements in TAC.

WCAG Standards


Principle 1: Information and user interface components must be presentable to users in ways they can perceive.

  1. Text Alternatives: Provide text alternatives for any non-text content so that it can be changed into other forms people need, such as large print, braille, speech, symbols or simpler language.
  2. Time-based Media: Provide alternatives for time-based media.
  3. Adaptable: Create content that can be presented in different ways (for example simpler layout) without losing information or structure.
  4. Distinguishable: Make it easier for users to see and hear content including separating foreground from background.


Principle 2: User interface components and navigation must be operable.

  1. Keyboard Accessible: Make all functionality available from a keyboard.
  2. Enough Time: Provide users enough time to read and use content.
  3. Seizures and Physical Reactions: Do not design content in a way that is known to cause seizures.
  4. Navigable: Provide ways to help users navigate, find content, and determine where they are.


Principle 3: Information and the operation of user interface must be understandable.

  1. Readable: Make text content readable and understandable.
  2. Predictable: Make web pages appear and operate in predictable ways.
  3. Input Assistance: Help users avoid and correct mistakes.


Principle 4: Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.

  1. Compatible: Maximize compatibility with current and future user agents, including assistive technologies.

Other TAC 206.70 Standards

TAC 206.70 actually excludes Guideline 1.2 Time Based Media from WCAG 2.0 AA, however, it indicates requests for accommodations must be met quickly.

Additionally, it added two sections, one of which is more recently covered in WCAG 2.1. "Institutions of higher education websites and web applications should be designed to support:

  1. variations in internet connection speeds and emerging communications protocols and technologies; and
  2. the ability to adapt content to end user devices such as mobile phone, tablets, or other devices which are available to the general public."

Internet Connection Speeds

Large files, including PDF documents and large or multiple images, are discouraged from use due to the length of time it takes to download them. The longer someone has to wait, the less likely they will access your content.

Mobile-friendly Content

Whether referring to use on mobile or tablet devices, the general idea is that a single piece of content (e.g. web page) can "respond" to the screen size of your device and adjust accordingly without you having to create two or three separate versions.

WCAG 2.1 covered mobile accessibility in some additional standards:


To be in conformance with accessibility standards, all content on all sections of the website, application, or document must be in conformance with accessibility standards. Therefore,

  • If 99 pages of a website are in conformance but 1 page is not, the website is not in conformance.
  • If all web pages of a website are in conformance but the documents are not, the website is not in conformance.