This presolicitation announces an upcoming total small business set-aside opportunity for rental of portable toilets, handwashing stations, and dumpster services in Guam, supporting exercise LUHO 6. The associated NAICS code is 562991 (Septic Tank and Related Services). Its purpose is to improve small business access and encourage competition, and responsible sources are urged to participate when the formal solicitation is posted. Submitting a quote does not constitute a contract or authorize work to begin.