View all text of Subpart F [§ 65.700 - § 65.702]
§ 65.701 - Period of review.
For both exchange and interexchange carriers subject to this part, interstate earnings shall be measured over a two year period to determine compliance with the maximum allowable rate of return. The review periods shall commence on January 1 in odd-numbered years and shall end on December 31 in even-numbered years.