Which accreditation program is specified for lead sampling laboratories?

• A. National Lead Lab Accreditation Program (NLLAP)
• B. National Lead Laboratory Accreditation Protocol (NLLAP)
• C. National Lead Laboratory Accreditation Program (NLLAP)
• D. National Laboratory Lead Accreditation Program (NLLAP)

Answer: (C)

The main idea here is knowing the exact official name of the program that accredits labs performing lead analyses. The official title is the National Lead Laboratory Accreditation Program, abbreviated NLLAP. This program provides the standards and processes—like proficiency testing and on-site audits—that laboratories must meet to be accredited for lead analysis in environmental samples.

The other phrasings aren’t the recognized title: using Lab instead of Laboratory changes the standard wording; calling it a Protocol refers to a procedure document rather than the accreditation program; and rearranging the words alters the official name.