Sec. 64.1508  Blocking access to 900 service.

    (a) Local exchange carriers must offer to their subscribers, where 
technically feasible, an option to block access to services offered on 
the 900 service access code. Blocking is to be offered at no charge, on 
a one-time basis, to:
    (1) All telephone subscribers during the period from November 1, 
1993 through December 31, 1993; and
    (2) Any subscriber who subscribes to a new telephone number for a 
period of 60 days after the new number is effective.
    (b) For blocking requests not within the one-time option or outside 
the time frames specified in paragraph (a) of this section, and for 
unblocking requests, local exchange carriers may charge a reasonable 
one-time fee. Requests by subscribers to remove 900 services blocking 
must be in writing.
    (c) The terms and conditions under which subscribers may obtain 900 
services blocking are to be included in tariffs filed with this 
Commission.