Sec. 87.473  Supplemental eligibility.

    (a) Licenses for radionavigation land stations will be granted only 
to applicants who can justify the need for an aeronautical 
radionavigation service when the Federal Aviation Administration is not 
prepared to render this service.
    (b) Licenses for radionavigation land test stations (MTF) will be 
granted only to applicants engaged in the development, manufacture or 
maintenance of aircraft radionavigation equipment. Licenses for 
radionavigation land test stations (OTF) will be granted only to 
applicants who

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agree to establish the facility at an airport for the use of the public.
    (c) Licenses for ELT test stations will be granted only to 
applicants to train personnel in the operation and location of ELTs, or 
for testing related to the manufacture or design of ELTs.