probability that harmful interference would be caused. Exemption of Unlicensed PCS Transmitters from the Restricted Bands. Under the current rules, unlicensed PCS transmitters operating under Subpart D of Part 15 are not subject to the restricted band provisions in 47 C.F.R. § 15.205. The cross-reference in Subpart D to other applicable Part 15 regulations, as specified in 47 C.F.R. § 15.309, does not include Subpart C of Part 15 or any of the individual regulations contained in that subpart. Thus, 47 C.F.R. § 15.205, which is contained in Subpart C, does not apply to unlicensed PCS transmitters. We are taking the opportunity provided by this Report and Order to clarify this current standard in our amendment to 47 C.F.R. § 15.205.