Reliability standard The term reliability standard has the meaning given such term in section 215(a)(3) of the Federal Power Act ( 16 U.S.C. 824o(a)(3) ). (12) SPP The term SPP means the Southwest Power Pool transmission organization. (13) Total transfer capability The term total transfer capability has the meaning given such term in section 37.6(b)(1)(vi) of title 18, Code of Federal Regulations (as in effect on the date of enactment of this Act). (14) Transmission facility The term transmission facility means a facility that is used for the transmission of electric energy in interstate commerce, including transmission lines. (15) Transmission organization The term transmission organization has the meaning given such term in section 215(a)(6) of the Federal Power Act ( 16 U.S.C. 824o(a)(6) ). (16) Tribal and Indigenous community The term Tribal and Indigenous community means a population of people who are members of— (A) a federally recognized Indian Tribe