Can a Government Agency issue a Request for Proposal (RFP) solicitation for a potential contract for janitorial services without the service contract clause in it?

Can a Government Agency issue a Request for Proposal (RFP) solicitation for a potential contract for janitorial services without the service contract clause in it?

Can a Government Agency issue a Request for Proposal (RFP) solicitation for a potential contract for janitorial services without the service contract clause in it? Why, or why not?