The specifications, tolerances, and regulations for commercial weighing and measuring devices, together with amendments thereto, as recommended by the National Institute of Standards and Technology, and published in the National Institute of Standards and Technology Handbook 44 and supplements thereto, or any publication revising, supplementing, or superseding Handbook 44, shall be the specifications, tolerances, and regulations for commercial weighing and measuring devices of the Commonwealth, except insofar as specifically modified, amended, or rejected by regulation issued by the Board. For purposes of this chapter, weights and measures shall be deemed to be in compliance with this chapter: (i) when they conform to all applicable requirements of Handbook 44 and supplements thereto, or any publication revising, supplementing, or superseding Handbook 44; or (ii) when they conform to any regulation adopted by the Board to modify, amend, or reject Handbook 44, as specified in this section. Other weights and measures shall not be in compliance.