Translators are a tricky subject. In most cases, they are almost impossible to get rid of once they are authorized, but 74.1203 can be used to forced them off the air if (IF) someone that used to listen to a station cannot hear it anymore and spontaneously complains. Note that, although not stated in the rules, the affected station cannot solicit listener complaints. Any complaints received at the FCC as a result of the affected station's mention are treated as induced and they are voided. However, in the case of unsolicited complaints of displaced existing listeners, the translator must accomodate the listener or go silent. They can do this by replacing your radio, providing an antenna, adjusting your antenna, adding a filter, providing an alternate feed (tough to do if you listen in your car) or whatever it takes to make you happy. I don't recall there being any distance or predicted coverage rules in play, but it's been a very long time since I looked into this and FCC policy is far more specific than what is stated in the rules, so there might be some requirement for the interference to occur within the service contour of the affected station, but I don't think so.
The actual rule is quoted, in part, below.
Sec. 74.1203 Interference.
(a) An authorized FM translator or booster station will not be
permitted to continue to operate if it causes any actual interference
to:
(1) The transmission of any authorized broadcast station; or
(2) The reception of the input signal of any TV translator, TV
booster, FM translator or FM booster station; or
(3) The direct reception by the public of the off-the-air signals of
any authorized broadcast station including TV Channel 6 stations, Class
D (secondary) noncommercial educational FM stations, and previously
authorized and operating FM translators and FM booster stations.
Interference will be considered to occur whenever reception of a
regularly used signal is impaired by the signals radiated by the FM
translator or booster station, regardless of the quality of such
reception, the strength of the signal so used, or the channel on which
the protected signal is transmitted.
(b) If interference cannot be properly eliminated by the application
of suitable techniques, operation of the offending FM translator or
booster station shall be suspended and shall not be resumed until the
interference has been eliminated. Short test transmissions may be made
during the period of suspended operation to check the efficacy of
remedial measures. If a complainant refuses to permit the FM translator
or booster licensee to apply remedial techniques which demonstrably will
eliminate the interference without impairment to the original reception,
the licensee of the FM translator or booster station is absolved of
further responsibility for that complaint.