Sec.  73.1225   Station inspections by FCC.

   (a) The licensee of a broadcast station shall make the station available for
   inspection by representatives of the FCC during the station's business
   hours, or at any time it is in operation.

   (b) In the course of an inspection or investigation, an FCC representative
   may  require  special equipment tests, program tests or operation with
   nighttime or presunrise facilities during daytime hours pursuant to  Sec. 0.314,
   part 0, of the FCC rules.

   (c) The following records shall be made available by all broadcast stations
   upon request by representatives of the FCC.

   (1) Equipment performance measurements required by  Sec.  Sec. 73.1590 and 73.1690.

   (2) The written designations for chief operators and, when applicable, the
   contracts for chief operators engaged on a contract basis.

   (3) Application for modification of the transmission system made pursuant to
    Sec. 73.1690(c).

   (4) Informal statements or drawings depicting any transmitter modification
   made pursuant to  Sec. 73.1690(e).

   (5) Station logs and special technical records.

   (d)  Commercial  and noncommercial AM stations must make the following
   information also available upon request by representatives of the FCC.

   (1) Copy of the most recent antenna or common-point impedance measurements.

   (2) Copy of the most recent field strength measurements made to establish
   performance of directional antennas required by  Sec. 73.151.

   (3) Copy of the partial directional antenna proofs of performance made in
   accordance with  Sec. 73.154 and made pursuant to the following requirements:

   (i) Section 73.68, Sampling systems for antenna monitors.

   (ii) Section 73.69, Antenna monitors.

   (iii) Section 73.61, AM direction antenna field strength measurements.

   [ 43 FR 45846 , Oct. 4, 1978;  43 FR 50683 , Oct. 31, 1978, as amended at  51 FR 41629 , Nov. 18, 1986;  51 FR 44478 , Dec. 10, 1986;  57 FR 48333 , Oct. 23,
   1992]