All rights-of-way granted under the regulations in this part may be terminated in whole or in part upon 30 days written notice from the Secretary mailed to the grantee at its latest address furnished in accordance with Sec. 169.5(j) for any of the following causes:
(a) Failure to comply with any term or condition of the grant or the applicable regulations;
(b) A nonuse of the right-of-way for a consecutive 2-year period for the purpose for which it was granted;
(c) An abandonment of the right-of-way. If within the 30-day notice period the grantee fails to correct the basis for termination, the Secretary shall issue an appropriate instrument terminating the right-of-way. Such instrument shall be transmitted by the Secretary to the office of record mentioned in Sec. 169.15 for recording and filing. [33 FR 19803, Dec. 27, 1968, as amended at 45 FR 45910, July 8, 1980. Redesignated at 47 FR 13327, Mar. 30, 1982]