Sec. 101.63  Period of construction; certification of completion of 
          construction.

    (a) Each station, except in the Local Multipoint Distribution 
Services, authorized under this part must be in operation within 18 
months from the initial date of grant. Modification of an operational 
station must be completed within 18 months of the date of grant of the 
applicable modification request.
    (b) Failure to timely begin operation means the authorization 
cancels automatically and must be returned to the Commission.
    (c) The frequencies associated with all point-to-multipoint 
authorizations which have cancelled automatically or otherwise been 
recovered by the Commission will again be made available for 
reassignment on a date and under terms set forth by Public Notice.
    (d) Requests for extension of time to be in operation may be granted 
upon a showing of good cause, setting forth in detail the applicant's 
reasons for failure to have the facility operating in the prescribed 
period. Such requests must be submitted no later than 30 days prior to 
the end of the prescribed period to the Federal Communications 
Commission, Gettysburg, PA 17325-7245.
    (e) Construction of any station must be completed by the date 
specified in the license as the termination date of the construction 
period. Licensees who fail to complete construction must return their 
authorization for cancellation within 5 days after the expiration of the 
construction period specified on the license.
[ 61 FR 26677 , May 28, 1996, as amended at  62 FR 23165 , Apr. 29, 1997]