/ ADA Rules and Regulations Summary / Definition of Terms /



To allow people with a variety of disabilities the ability to enter and use the facilities and services of buildings and sites which are open to the public.


Abbreviation for "Americans with Disabilities Act"; a law giving people with disabilities as much access as possible to public buildings, services, and employment.


Braille is a reading system of tactile dot patterns used by the visually impaired. Each Braille character, or "cell", is composed of up to six raised dots. The number and location of the dots indicates the character(s) it represents.

Grade 1 Braille is the alphabet, "letter-for-letter".

Grade 2 Braille is required by ADA. Grade 2 Braille uses the same character dot cells as Grade 1, but is not a "letter-for-letter" scheme. Grade 2 Braille contains close to 200 contracted words and word fragments.

Grade 3 Braille is a shorthand form.


Means travel, trade, traffic, transportation, or communication.


Displayed verbal, symbolic, tactile, and pictorial information.


Describes an object that can be perceived using the sense of touch.


Facilities that are intended for non-residential use by a private entity and whose operations affect commerce.


• Social service center establishments
• Places of lodging
• Places of education
• Places of exhibition or entertainment
• Places of recreation
• Places of public display or collection
• Places of public gathering
• Sales or rental establishments
• Stations used for public transportation

An accessible building allows people with a variety of disabilities to enter and use the facilities and services of the building or site.