(a) In addition to those changes listed in Sec. 1.929(k) of this chapter and in accordance with Sec. 1.947 of this chapter the following modifications may be made to an existing authorization without prior Commission approval:
(1) Change in the number and location of station control points or of control stations operating below 470 or above 800 MHz meeting the requirements of Sec. 90.119(b).
(2) Change in the number of mobile units operated by Radiolocation Service licensees.
(b) Unless specifically exempted in Sec. 90.175, licensees must submit a Form 601 application for modification to the applicable frequency coordinator for any change listed in Sec. 1.929(c)(4) of this chapter. [65 FR 60875, Oct. 13, 2000]