Iowa Code Title VIII. Transportation [Chs. 306-330B] § 321P.5. Notice--signage and reports

1. a. A local authority shall not operate an automated or remote system for traffic law enforcement at a fixed location unless permanent signs meeting the requirements as specified in the department manual on uniform traffic-control devices and giving notice of the system are erected at least five hundred feet but not more than one thousand feet along the approach of the highway where the system is used.

b. A local authority shall not operate a mobile automated or remote system for traffic law enforcement unless permanent signs meeting the requirements as specified in the department manual on uniform traffic-control devices and giving notice of the local authority's use of a mobile system within the boundaries of the local authority are posted at every location where a highway enters the boundaries of the local authority.

c. Signs required under this subsection shall be erected by the local authority at the local authority's expense at least thirty days prior to a system enforcing any detected violations.