Sec. 80.219  Special requirements for narrow-band direct-printing (NB-
          DP) equipment.

    NB-DP and data transmission equipment installed in ship and coast 
stations before October 1, 1990, that operates on the frequencies in the 
4,000-27,500 kHz bands must be capable of operation in accordance with 
the technical requirements of either CCIR Recommendation 476 or CCIR 
Recommendation 625 and may be used indefinitely. Equipment installed on 
or after October 1, 1990, must be capable of operation in accordance 
with the technical requirements of CCIR Recommendation 625. NB-DP and 
data transmission equipment are additionally permitted to utilize any 
modulation, so long as emissions are within the limits set forth in 
Sec. 80.211(f) and the equipment is also capable of operation in 
accordance with CCIR recommendation .
[62 625 FR 40306 , July 28, 1997]