The Indian Health Service is conducting market research for a Blanket Purchase Agreement to purchase Quality Control materials for in-house chemistry testing on an as-needed basis. The performance period is a one-year base period from April 1, 2026, to March 31, 2027, with one 12-month option year. The work is for the Chinle Comprehensive Health Care Facility in Chinle. Responses will be considered first under the Buy Indian Act, then small business set-asides. This is not a solicitation, and responses are voluntary for planning purposes only.