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2012 Texas Accessibility Standards (TAS) Pocket Guide

Note: This document or portion of document references a state or local code that aligns with the 2010 ADA Standards requirements.

303 Changes in Level

303.1 General.

Where changes in level are permitted in floor or ground surfaces, they shall comply with 303.

EXCEPTIONS:

1. Animal containment areas shall not be required to comply with 303.

2. Areas of sport activity shall not be required to comply with 303.

303.2 Vertical.

Changes in level of 1/4 inch (6.4 mm) high maximum shall be permitted to be vertical.

Elevation drawing of a change in level between the surfaces of two parallel planes with a vertical edge that is 1/4 inch (6.4 mm) high maximum.

Figure 303.2 Vertical Change in Level

303.3 Beveled.

Changes in level between 1/4 inch (6.4 mm) high minimum and 1/2 inch (13 mm) high maximum shall be beveled with a slope not steeper than 1:2.

Advisory 303.3 Beveled. A change in level of 1/2 inch (13 mm) is permitted to be 1/4 inch (6.4 mm) vertical plus 1/4 inch (6.4 mm) beveled. However, in no case may the combined change in level exceed 1/2 inch (13 mm). Changes in level exceeding 1/2 inch (13 mm) must comply with 405 (Ramps) or 406 (Curb Ramps).

Elevation drawing of a change in level 1/4 to 2 inches (6.4 - 13 mm) high that is beveled with a slope of 1:2.

Figure 303.3 Beveled Change in Level

303.4 Ramps.

Changes in level greater than 1/2 inch (13 mm) high shall be ramped, and shall comply with 405 or 406.

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