The purpose of this standard is to establish specifications which define standards and identification of back-up audible alarm signals required on garbage and refuse collection and disposal vehicles and certain vehicles used primarily for highway repair and maintenance.

"Back-up audible alarm signal" means an electric powered device consisting of an alarm, alarm control circuitry and an activating switch required for use on vehicles used for garbage and refuse collection and disposal and on vehicles having a manufacturer's gross vehicle weight rating of 10,001 pounds or more and used primarily for highway maintenance and repair.

The alarm mandated by § 46.2-1175 will be an electric powered device consisting of an alarm, alarm control circuitry, and an activating switch which meets or exceeds Society of Automotive Engineers (SAE) Standard J994. The alarm shall be activated immediately when the transmission control mechanism is shifted into a reverse position, and shall remain activated until the mechanism is shifted out of the reverse position. The alarm will be identified must be marked as, or certified by the manufacturer, seller, or installer as meeting or exceeding the Society of Automotive Engineers SAE Standard J994.

Devices must meet or exceed standards as set forth in SAE J994 which includes the following tests:

1. Sound level test;

2. Vibration test;

3. Rain test;

4. Corrosion test;

5. Steam test;

6. Dust test;

7. Life cycle test.

Whenever the Superintendent of State Police deems it necessary, he may require the manufacturer or distributor of back-up audible alarm signal devices to furnish proof that the alarm or any part of the alarm meets or exceeds the requirements of this chapter.