; (4) State requirements for continuing education for environmental health workers; (5) whether State, local, and city health departments and independent environmental health agencies track continuing education units for their environmental health workers; and (6) how frequently any exam required to qualify environmental health workers is updated and reviewed to ensure that the exam is consistent with current law. (b) Selection of States The report described in subsection (a) shall be based upon the examination of such best practices with respect to 3 States that have credentialing requirements for environmental health workers and 3 States that do not have such requirements. 3015. Public service loan forgiveness Section 455(m) of the Higher Education Act of 1965 ( 20 U.S.C. 1087e(m) ) is amended in paragraph (3)(B)— (1) in clause (i), by striking or at the end; (2) in clause (ii), by striking the period at the end and inserting ; or