Pennsylvania Code
Title 70 - WEIGHTS, MEASURES AND STANDARDS
Part I - Weighmasters
Chapter 6 - REGISTRATION OF SELLERS, INSTALLERS AND REPAIRERS OF WEIGHING AND MEASURING DEVICES
Section 6.3 - Field standards

(a) General requirement. An individual person who is employed or engaged in the business of installing, servicing or repairing commercially used weighing and measuring devices shall have, maintain and use field standards that are adequate to test and place weighing and measuring devices into commercial service, and otherwise meet the requirements of NIST Handbook 44, or a subsequent amendment thereof.

(b) Adequate field standards. For purposes of this chapter, field standards will not be considered adequate for use in placing commercially used weighing and measuring devices into service unless there exists a verification of accuracy issued by the State Metrology Laboratory with respect to those field standards, and the verification of accuracy was issued within 1 year preceeding use of the field standards. This verification of accuracy may take the form of a "Report of Test for Weights and Measures Standards" or a similar document.