Subpart 1.

A117.1 section 904.2, Approach.

A117.1 section 904.2 is amended to read as follows:

904.2 Approach. All portions of counters required to be accessible shall be located where transactions or services are customarily provided and be adjacent to a walking surface complying with Section 403.

Subp. 2.

A117.1 section 904.3, Sales and service counters.

A117.1 section 904.3 is amended to read as follows:

904.3 Sales and service counters and windows. Sales and service counters and windows shall comply with Section 904.3.1 and either Section 904.3.2 or 904.3.3. Where counters are provided, the accessible portion of the countertop shall extend the same depth as the public portion of the sales and service countertop provided for standing customers.

Exception: In alterations, when the provision of a counter complying with this section would result in a reduction of the number of existing counters at work stations or a reduction of the number of existing mail boxes, the counter shall be permitted to have a portion which is 24 inches (610 mm) minimum in length complying with Section 904.3.2, provided that the required clear floor space is centered on the accessible length of the counter.

904.3.1 Vertical barriers. At service windows or service counters, any vertical barrier between service personnel and customers shall be at a height of 43 inches (1,090 mm) maximum above the floor.

Exception: Transparent security glazing shall be permitted above the 43 inches (1,090 mm) maximum height.

904.3.2 Parallel approach. A portion of the public use side of the counter surface 36 inches (915 mm) minimum in length and 26 inches (660 mm) minimum to 36 inches (915 mm) maximum in height above the floor shall be provided. A clear floor space positioned for a parallel approach adjacent to the accessible counter shall be provided. The space between the accessible counter surface and any projecting objects above the accessible counter shall be 12 inches (305 mm) minimum.

Exception: Where the counter surface is less than 36 inches (915 mm) in length, the entire counter surface shall be 26 inches (660 mm) minimum to 36 inches (915 mm) maximum in height above the floor.

904.3.3 Forward approach. A portion of the public use side of the counter surface 30 inches (760 mm) minimum in length and 36 inches (915 mm) maximum in height above the floor shall be provided. A clear floor space positioned for a forward approach to the accessible counter shall be provided. Knee and toe clearance complying with Section 306 shall be provided under the accessible counter. The space between the accessible counter surface and any projecting objects above the accessible counter shall be 12 inches (305 mm) minimum.