Federal obligations in physical, engineering, and life sciences R&D except nanotechnology and biotechnology (NAICS 541715)

What the 541715 exception clause means

NAICS 541715 is R&D in the physical, engineering, and life sciences with two explicit carve-outs: nanotechnology and biotechnology. On USAspending.gov the code tags contract awards classified that way. Physics, chemistry, aerospace research, medical-device research that is not coded as biotech, and similar contracted R&D can land here. Work that contracting officers tag as biotechnology R&D belongs on 541714 or 541711, not in this total.

The dollar figure is $208.0 billion on 31,942 awards. Award counts on older combined R&D codes are not interchangeable with this split code. That is a different contracting pattern: more task orders and modifications under the current split code, versus a small set of vehicles still carrying the old combined code. Do not merge the two totals as if they were one industry.

Reading $208.0 billion as obligations

USAspending reports obligations on contract awards. R&D vehicles increment funding, exercise options, and issue task orders; each action can add to $208,028,783,756.20. This packet has no fiscal-year split. The headline is the industry aggregate for awards tagged 541715, not an annual research appropriation and not an outlay total.

Cash payments (outlays) follow performance. A multi-year research contract can show a large obligation while invoices are still being paid. Quote the figure as USAspending contract obligations coded to NAICS 541715, and keep the 31,942 award count with it.

31,942 awards as a volume signal

A record count in the tens of thousands on an R&D code usually means many orders under IDIQs, SBIR/STTR-style contract actions that were tagged 541715, and modifications. It is not a count of published papers or of unique laboratories. 541715 is the high-volume current code for this scientific domain minus nano and biotech. Open the industry table to see how those 31,942 rows concentrate among recipients.

Grants and neighboring R&D codes

Assistance awards often lack NAICS and are outside $208,028,783,756.20. Social-science R&D is 541720. Engineering services (541330) is professional design and related services, not this R&D line. Manufacturing codes capture production, not the research contract that preceded it.

SpendingVault rolls up USAspending.gov contract data. Both dollars and the 31,942 award count can move after corrections. The live industry page is the table of record.

Using the 541715 industry page

Start at the RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT NANOTECHNOLOGY AND BIOTECHNOLOGY) industry page. Use All industries to keep 541715 next to 541710, 541712, and the biotech codes without combining them. Cite USAspending, say obligations not outlays, and do not drop the except-nano-and-biotech qualifier.

Citing 541715 without dropping the except clause

Any citation of $208,028,783,756.20 should keep the full qualifier: physical, engineering, and life sciences R&D except nanotechnology and biotechnology, NAICS 541715, 31,942 contract awards, USAspending.gov obligations. Dropping the except clause makes the figure look like all scientific R&D.

Because 31,942 is a large record count, readers may assume the code is a grant inventory. It is not. Assistance often has no NAICS. The industry page is the award list. This guide does not split the $208.0 billion by agency, performer, or year, because those splits are not in the packet.

The except nanotechnology and biotechnology clause is not decoration. It is the difference between this table and both the older combined R&D code and the biotech R&D codes. If a contracting officer still tags a physics contract as 541710, those dollars never arrive in the $208,028,783,756.20 total. If they tag a biotech contract as 541714, those dollars never arrive here either. The 31,942 awards are the tagged 541715 set only.

SBIR-style contract actions, task orders, and modifications can all inflate a research-code award count without implying 31,942 unique laboratories. This packet has no performer census. It has obligations and a record count. Cite both. Keep grants out. Keep outlays out. The live industry page is the place to see whether a handful of vehicles dominate the 31,942 rows.

Questions

How much is obligated on NAICS 541715?

USAspending.gov contract awards coded NAICS 541715 show $208,028,783,756.20 in obligations across 31,942 awards. That is obligations, not outlays, for physical, engineering, and life sciences R&D except nanotechnology and biotechnology. USAspending.gov records the amount as contract obligations, not outlays, on awards tagged NAICS 541715.

How is 541715 different from 541710?

541715 excludes nanotechnology and biotechnology and shows 31,942 awards. 541710 is the older combined R&D code with a different award count on its own page. This page reports only $208,028,783,756.20 on 541715. The codes should not be added together as one industry.

Does 541715 include biotechnology contracts?

By definition the NAICS title excludes nanotechnology and biotechnology. Biotech R&D belongs on other codes such as 541714 or 541711. Dollars in this table are the $208,028,783,756.20 tagged 541715. Treat the 31,942 figure as an award-record count, including orders and modifications, not as a physical inventory of products or sites.

Are research grants in the 31,942 awards?

The 31,942 figure counts contract award records tagged 541715. Assistance awards may not carry NAICS and are generally outside this total. Grant-funded research is not this industry table. This guide does not add a fiscal-year split. Quote the live industry page if you need the current award list under RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT NANOTECHNOLOGY AND BIOTECHNOLOGY).