J--R10 Lab: Rigaku MiniFlex 600 XRD Annual Service

Correction to Sources Sought Notice 68HE0727Q0002 - Revised Period of Performance The US EPA is issuing this notice to correct the anticipated period of performance identified in the previously published Sources Sought Notice 68HE0727Q0002, Rigaku Miniflex 600 XRD Annual Service Contract. The anticipated contract structure is revised from a 12-month base period with four one-year option periods to a single 12-month period of performance without option periods. All other requirements remain unchanged. Any references to option periods in the original notice or associated attachments are superseded by this correction. Interested vendors should refer to the original sources sought notice for the requirements and response instructions. Responses remain due November 16, 2026, at 4:30 p.m. Eastern. This notice is issued solely for market research purposes and does not constitute a solicitation, request for quotation, or commitment by the Government to award a contract.