The United States Coast Guard (USCG) is issuing Request for Proposals (RFP) No. 70Z02326R93280004 for the Homeland Security Cutter - Light Icebreaker (HSC-L) acquisition. The Government intends to award an Indefinite-Delivery, Indefinite-Quantity (IDIQ) contract for the design, production, testing, delivery, and related supplies and services for HSC-L vessels in accordance with the solicitation. This solicitation uses a two-phase advisory down-select process. Phase 1 proposals are due by the date and time stated in this notice and the solicitation. Following Phase 1 evaluations, the Government intends to issue advisory down-select notices to offerors in accordance with Section L of the solicitation. Phase 2 proposal due dates will be included in a subsequent solicitation amendment. Offerors shall review and comply with all requirements, instructions, terms, conditions, provisions, clauses, and attachments included in the solicitation. The complete solicitation, including the SF-33, Sections B through M, and all applicable attachments, is provided below under the Attachments/Links section of this notice. All questions and proposal submissions shall be made in accordance with the instructions provided in the solicitation.