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Qualified individual with a disability: An individual with a disability who, with or without reasonable modification to rules, policies, or practices, the removal of architectural, communication, or transportation barriers, or the provision of auxiliary aids and services, meets the essential eligibility requirements for the receipt of services or the participation in programs or activities provided by a public entity (Americans with Disabilities Act of 1990).

QR Code: abbreviated from Quick Response Code — is the trademark for a type of matrix barcode (or two-dimensional code) first designed for the automotive industry.  More recently, the system has become popular outside of the industry due to its fast readability and large storage capacity compared to standard UPC barcodes.  The code consists of black modules arranged in a square pattern on a white background.  The information encoded can be made up of four standardized kinds ("modes") of data (numeric, alphanumeric, byte/binary, Kanji), or by supported extensions virtually any kind of data.

Ramp: A sloped transition between two elevation levels.

Reach range: The three-dimensional space within touching or grasping distance of a pedestrian. As a consequence of their seated position, wheelchair users generally have a more limited reach distance than other pedestrians.

Reader: Volunteer or employee of an individual with a disability (e.g., visual impairment, learning disability) who reads printed material in person or records to audio tape.

Readily achievable: Easily accomplished and able to be carried out without much difficulty or expense; refers to the criterion for barrier removal under Title III of the ADA.

Reading system: Hardware and software designed to provide access to printed text for people with visual impairments, mobility impairments, or learning disabilities. Character recognition software controls a scanner that takes an image of a printed page, converts it to computer text using recognition software and then reads the text using a synthesized voice.

Reasonable accommodation: Modifications or adjustments to a program, work environment, or job description that make it easier for a person with a disability to participate in the same manner as other employees.

This page provides a glossary of terms for letters Q through R.

Glossary of terms

Q - R

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