70 Pa. Code § 8.4
A State inspector, county sealer or city sealer who has successfully completed a NIST training course prior to May 8, 1999, and who has continued to work as a State inspector, county sealer or city sealer since completing the course, and who provides the Department a copy of the applicable course completion certificate or other documentation evidencing completion of the course, shall be deemed to have met the minimum training requirements of this chapter with respect to any category or type of weighing and measuring device addressed in that NIST training course. The Department will mail the inspector or sealer written confirmation that the sealer or inspector is deemed to have met these requirements within 10 days of receiving the referenced certificate or documentation.
70 Pa. Code § 8.4