(a) There shall be subscribed on the maps of definite location an affidavit executed by the engineer who made the survey and a certificate executed by the applicant, both certifying to the accuracy of the survey and maps and both designating by termini and length in miles and decimals, the line of route for which the right-of-way application is made.
(b) Maps covering roads built by the Bureau of Indian Affairs which are to be transferred to a county or State government shall contain an affidavit as to the accuracy of the survey, executed by the Bureau highway engineer in charge of road construction, and a certificate by the State or county engineer or other authorized State or county officer accepting the right-of-way and stating that he is satisfied as to the accuracy of the survey and maps.