This is a notice of intent to award a sole-source contract using simplified acquisition procedures and is not a request for competitive quotes. The Centers for Disease Control and Prevention (CDC) intends to award a sole-source purchase order using the procedures at RFO 12.102(a) as it has been deemed that only one source is available to meet this specific requirement due to the intended vendor, TSI Incorporated being the only company making a Scanning Mobility Particle Sizer that meets the specifications needed for inhalation research. The statement of work and specifications are attached. This notice of intent is not a request for competitive quotations. Any party who believes they can perform this requirement should submit a capability statement for consideration by the government. A determination by the government not to compete this proposed contract based on responses to this notice is solely within the discretion of the government. Information received by the government as a result of this notice will be considered solely for the purpose of determining whether to conduct competitive procurement. The government will not be responsible for any costs incurred by a party who responds to this notice. A party may identify their interest and submit a capability statement by 4pm (EST) on 17 June 2026. Responses, including questions about this notice, should be sent via email to Contract Specialist, Aminah Gary at uuu0@cdc.gov.