33 U.S.C. § 883a : US Code - Section 883A: Surveys and other activities

Search 33 U.S.C. § 883a : US Code - Section 883A: Surveys and other activities

To provide charts and related information for the safe navigation
of marine and air commerce, and to provide basic data for
engineering and scientific purposes and for other commercial and
industrial needs, the Secretary of Commerce, is authorized to
conduct the following activities:
(1) Hydrographic and topographic surveys;
(2) Tide and current observations;
(3) Geodetic-control surveys;
(4) Field surveys for aeronautical charts;
(5) Geomagnetic, seismological, gravity, and related geophysical
measurements and investigations, and observations for the
determination of variation in latitude and longitude.