6-1-397: LAMPS ON BICYCLES:
   A.   Requirement: Every bicycle shall be equipped with a lamp on the front exhibiting a white light, at the times specified in section 6-1-384 of this chapter visible from a distance of at least three hundred feet (300') to the front and with a lamp on the rear exhibiting a red light visible from a distance of three hundred feet (300') to the rear; except that a red reflector meeting the requirements of Iowa Code chapter 321 may be used in lieu of a rear light.
   B.   Exception: A peace officer riding a police bicycle is not required to use either front or rear lamps if duty so requires. (2008 Code § 17-397)