Experimental use permits required under Section 5 of FIFRA can be used when conducting experimental field tests on new pesticides or new uses of pesticides on:

• A. 10 or more acres of land or 1 or more acres of water
• B. 5 or more acres of land or 1 or more acres of water
• C. 7 or more acres of land or 2 or more acres of water
• D. None of the above

Answer: (A)

Experimental Use Permits under FIFRA Section 5 are meant for field testing of pesticides that are not yet registered or are being tested for a new use, and the trigger for needing an EUP is the size of the testing area. Specifically, when testing occurs on 10 acres or more of land, or on 1 acre or more of water, an Experimental Use Permit is required. This threshold helps ensure that larger, controlled field trials are overseen by the EPA, providing appropriate data on safety, efficacy, and environmental impact while limiting potential exposure. Because this regulates how and where unregistered products or new uses can be tested in the field, the 10-acre land or 1-acre water criterion is the standard boundary that makes an EUP necessary. The other numbers don’t align with this regulatory benchmark, so they don’t automatically require an EUP under Section 5.