; and (ii) with which the applicant coordinates to provide the full continuum of treatment services (as specified in subsection (g)(1)(B)) that the applicant is unable to offer on site. . (c) Center activities carried out through third parties Section 552(g) of the Public Health Service Act ( 42 U.S.C. 290ee–7(g) ) is amended in the matter preceding paragraph (1) by striking Each Center shall and all that follows through subsection (f): and inserting the following: Each Center shall, at a minimum, carry out the activities specified in this subsection directly, through referral, or through contractual arrangements. If a Center elects to carry out such activities through contractual arrangements, the Secretary may issue guidance on best practices to ensure that the Center is capable of carrying out such activities, including carrying out such activities through technology-enabled collaborative learning and capacity building models described in subsection (f) and coordinating the full continuum of treatment services specified in subparagraph (B). Such activities include the following: .