A person may not assume the title "licensed public weighmaster" or any title of similar import, perform the duties or acts to be performed by a licensed public weighmaster under the act or this chapter, hold himself out as a licensed public weighmaster, issue a weighmaster's certificate, ticket memorandum or statement or engage in the full-time or part-time business of public weighing unless the person holds a valid license as a licensed public weighmaster.
70 Pa. Code § 9.3