(a) Incumbent and site-based licenses are subject to the construction requirements set forth in Sec. 101.63.
(b) Each MAS EA licensee must provide service to at least one-fifth of the population in its service area or ``substantial service'' within five years of the license grant. In addition, MAS EA licensees must make a showing of continued ``substantial service'' within ten years of the license grant. Licensees must file maps and other supporting documents showing compliance with the respective construction requirements within the appropriate five- and ten-year benchmarks of the date of their initial licenses.
(c) Failure by any licensee to meet these requirements will result in forfeiture or non-renewal of the initial license, and the licensee will be ineligible to regain it. [65 FR 17450, Apr. 3, 2000, as amended at 68 FR 4961, Jan. 31, 2003]