| EXCEPTIONS: | 1. The costs of providing the accessible route are not required to exceed 20 percent of the costs of the alteration affecting the area of primary function. |
| 2. This provision does not apply to alterations limited solely to windows, hardware, operating controls, electrical outlets and signs. | |
| 3. This provision does not apply to alterations limited solely to mechanical systems, electrical systems, installation or alteration of fire protection systems and abatement of hazardous materials. | |
| 4. This provision does not apply to alterations undertaken for the primary purpose of increasing the accessibility of an existing building, facility or element. |