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.

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    (1) Equipment performance measurements required by Secs. 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]