; (4) by redesignating subsection (f) as subsection (g); and (5) by inserting after subsection (e) the following: (f) Definition In this section, the term State includes an Indian tribe, tribal organization, and Urban Indian organization (as such terms are defined in section 4 of the Indian Health Care Improvement Act). . III Expanding Access to Treatment Services 301. Allowing for more flexibility with respect to medication-assisted treatment for opioid use disorders (a) Conforming applicable number Subclause (II) of section 303(g)(2)(B)(iii) of the Controlled Substances Act ( 21 U.S.C. 823(g)(2)(B)(iii) ) is amended to read as follows: (II) The applicable number is— (aa) 100 if, not sooner than 1 year after the date on which the practitioner submitted the initial notification, the practitioner submits a second notification to the Secretary of the need and intent of the practitioner to treat up to 100 patients; (bb) 100 if the practitioner holds additional credentialing, as defined in section 8.2 of title 42, Code of Federal Regulations (or successor regulations); (cc) 100 if the practitioner provides medication-assisted treat­ment (MAT) using covered medications (as defined in section 8.2 of title 42, Code of Federal Regulations (or successor regulations)) in a qualified practice setting (as described in section 8.615 of title 42, Code of Federal Regulations (or successor regulations))