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:

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 acres of land
• C. 100 acres of land
• D. 1 acre of water only

Answer: (A)

Section 5 Experimental Use Permits are needed whenever field testing of a pesticide not yet registered or for a new use is planned on a substantially sized area. This oversight ensures environmental and human health risks are carefully studied under controlled conditions before broader use. Testing on a large tract of land or on a sizeable body of water falls under this requirement, providing the regulatory framework and data collection needed for safety and efficacy. Very small trials on limited plots or minor water areas typically don’t automatically require an EUP, though other regulatory pathways could apply.