Federal Land Survey Act of 1981

Federal Land Survey Act of 1981 - Directs the Secretary of the Interior to notify affected agencies and the public of the intent to conduct, certify, or record any land survey or resurvey, at least 30 days prior to such intended action. Requires the Secretary to: (1) initiate the survey within six months of the notice of intent; (2) complete the survey affixing a permanent mark designating the year when established and otherwise complying with applicable state statutes; and (3) certify the survey in the appropriate land office within 90 days of its completion. Sets forth certain monumentation requirements for surveys involving both Federal and non-Federal lands. Provides a procedure for removal of any monumentation if the Secretary fails to certify such monument within the 90-day period.

Authorizes the Secretary or his designee to conduct land surveys by contract with private sources in accordance with provisions of this Act. Requires the Secretary's designee to cooperate with the Interstate Commerce Commission to conduct cadastral surveys and plat maps necessary to perpetuate land boundaries adjacent to abandoned railroads or utilities.

Directs the Secretary of the Interior, the Secretary of Commerce, and the Secretary of Agriculture, in consultation with State governors and the President of the National Academy of Sciences, to: (1) conduct an assessment of multipurpose national cadastre information needs; and (2) develop a feasibility study for the establishment of a multipurpose national cadastre system. Requires the submission of such feasibility report to the Congress within three years of enactment of this Act.