CFR > Title 47 - Telecommunication > CHAPTER I—FEDERAL COMMUNICATIONS COMMISSION > SUBCHAPTER B—COMMON CARRIER SERVICES (Parts 20–69) > PART 64—MISCELLANEOUS RULES RELATING TO COMMON CARRIERS > SUBPART S—Nondominant Interexchange Carrier Certifications Regarding Geographic Rate Averaging and Rate Integration Requirements (§64.1900 to §64.1900)