47 C.F.R. §20.6
For purposes of the ownership attribution limit, all ownership interests in operations that serve at least 10 percent of the population of the PCS service area should be included in determining the extent of a PCS applicant's cellular or SMR ownership.
When a party owns an attributable interest in more than one cellular or SMR system that overlaps a PCS service area, the total population in the overlap area will apply on a cumulative basis.
Waivers of § 20.6(d) may be granted upon an affirmative showing:
(1) That the interest holder has less than a 50 percent voting interest in the licensee and there is an unaffiliated single holder of a 50 percent or greater voting interest;
(2) That the interest holder is not likely to affect the local market in an anticompetitive manner;
(3) That the interest holder is not involved in the operations of the licensee and does not have the ability to influence the licensee on a regular basis; and
(4) That grant of a waiver is in the public interest because the benefits to the public of common ownership outweigh any potential anticompetitive harm to the market.