FY2025 obligations by the NAICS code on the award
57% of the $728.3M obligated under R604 in FY2025 went to awards coded NAICS 561499.
- 325412 Pharmaceutical Preparation Manufacturing$61.5M
- 492110 Couriers and Express Delivery Services$54.2M
- 491110 Postal Service$42.4M
FY2025 federal contract obligations, USAspending.gov
PSC R604 covers mailing and distribution: mailroom operations, presort and bulk mail services, fulfilment and shipping of agency materials, and the distribution centers behind them. The manual excludes courier and messenger services, which have their own code (R602). FY2025 obligations were $728 million, the smallest code in this reference set.
An unusual top five
$419 million was awarded under 561499, All Other Business Support Services, the mailroom and fulfilment industry. Then Facilities Support Services (561210) at $99 million. Third place is 325412, Pharmaceutical Preparation Manufacturing, at $62 million, which is mail-order pharmacy distribution being classified as a mailing and distribution service. Couriers and express delivery 492110 take $54 million, and 491110, the Postal Service itself, appears as a NAICS code at $42 million.
The two-code system, briefly
The PSC belongs to the requirement; the NAICS code is the industry the contracting officer assigned to it.
Two practical notes. First, if you do courier work, R602 is your code and R604 will mislead you. Second, R604 is a good example of why searching by NAICS alone fails: nothing about a pharmaceutical manufacturing code suggests mail services, yet that is where a tenth of this code sits.
PSC R604 FAQ
What does PSC R604 cover?
Mailing and distribution services, including mailroom operations, presort and bulk mail handling, and fulfilment and distribution of agency materials.
What NAICS codes win R604 work?
All Other Business Support Services (561499) led FY2025 at $419 million, followed by Facilities Support Services (561210) at $99 million and Pharmaceutical Preparation Manufacturing (325412) at $62 million.
Why is a pharmaceutical NAICS code in the top three?
Mail-order pharmacy programs are bought as distribution services. The award carries the manufacturing code assigned to the contract even though the requirement is delivery.
Does R604 include courier services?
No. The manual excludes courier and messenger services from R604 and gives them their own code, PSC R602.