This is a Sources Sought notice, not a solicitation, issued under the Buy Indian Act preference for Indian Economic Enterprises. IHS seeks Indian Small Business Economic Enterprises capable of emergency generator preventive maintenance, operational testing, corrective repair, emergency callout, controller/ATS software and firmware updates, and temporary rental generator services, including associated automatic transfer switches. Performance locations are Lawton Indian Hospital in Lawton, OK, and Anadarko Indian Health Center in Anadarko, OK. Respondents should provide capability statements and the Buy Indian Act Indian Economic Enterprise Representation Form that directly demonstrate relevant experience and capacity; generic capability statements are not sufficient. The applicable NAICS code is 811310 with a $12.5 million small business size standard, and the PSC is J061.