Section 2. Every land surveyor shall, at least once in every year, adjust and verify his compass by the meridian line so established in the county in which his surveys are to be made, insert in his field notes both the true and the magnetic bearings of the lines of his surveys and the days on which such lines were run and shall enter in a book open to public inspection, to be provided by the commissioners of each county and kept by the clerk of courts, or by a person appointed by the commissioners therefor, the variation of his compass from the true meridian, whether east or west, and shall sign and make oath to such entry.
Structure Massachusetts General Laws
Part I - Administration of the Government
Title XV - Regulation of Trade
Chapter 97 - Surveying of Land
Section 2 - Annual Adjustment and Verification of Compass; Record
Section 3 - Use of Measuring Devices
Section 7 - Failure to Adjust Compass
Section 8 - Massachusetts Coordinate System Nad, 1983; Mainland and Island Zones
Section 9 - Zones, Designation
Section 10 - Coordinates, Definition
Section 11 - Conversion of Meters to United States Survey Feet
Section 12 - Massachusetts Coordinate System Nad, 1983; Definition
Section 13 - Limitation on Use of Name of System
Section 14 - Coordinate System Nad, 1927; Continued Use
Section 15 - Coordinates; Location of Points on Earth's Surface
Section 16 - Coordinate System Nad, 1927; Definition
Section 17 - Use of System in Describing Locations of Survey Stations or Land Boundary Points