1910.004-74 Procedure for negotiated procurements and small purchases.
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
(a) The policies and procedures prescribed for sealed bid procurements shall be generally applicable to negotiated procurements.
(b) The clause set forth at 1952.210-70 may be adapted for use in negotiated procurements. If use of the clause is not practicable (as may be the case in unusual and compelling urgency purchases), suppliers shall be suitably informed that proposals offering products different from the products referenced by brand name will be considered if the contracting officer determines that the offered products meet fully the salient characteristics requirements of the solicitation.
(c) In small purchases within open-market limitations, such policies and procedures shall be applicable to the extent practicable.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.