Laws & Regulations
The U.S. Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine Program (USDA APHIS PPQ) and the plant regulatory agencies within the state, commonwealth, or territory members of the National Plant Board, regulate the shipment of nursery and greenhouse stock in an effort to minimize the spread of harmful insects, diseases, and other pests. This page is designed as a reference tool for nursery stock growers, brokers, purchasers, and others involved in the buying, selling, and interstate transport of regulated plants and plant products. These summaries are periodically updated by individual members.
State |
Last Update/Confirmation: |
PDF |
Alabama |
August 2025 |
|
Alaska |
September 2025 |
|
Arkansas |
April 2022 |
|
Arizona |
June 2024 |
|
California |
July 2025 |
|
Colorado |
August 2025 |
|
Connecticut |
March 2024 |
|
Delaware |
February 2024 |
|
Florida |
July 2022 |
|
Georgia |
April 2023 |
PDF |
Guam |
September 2021 |
|
Hawaii |
April 2022 |
|
Iowa |
September 2019 |
|
Idaho |
May 2024 |
|
Illinois |
August 2025 |
|
Indiana |
November 2025 |
|
Kentucky |
September 2025 |
|
Kansas |
August 2021 |
|
Louisiana |
May 2023 |
|
Massachusetts |
August 2025 |
|
Maryland |
August 2025 |
|
Maine |
September 2025 |
|
Michigan |
October 2025 |
|
Minnesota |
April 2023 |
|
Missouri |
September 2025 |
|
Mississippi |
August 2025 |
|
Montana |
September 2025 |
|
North Carolina |
January 2025 |
|
North Dakota |
August 2025 |
|
Nebraska |
May 2024 |
|
New Hampshire |
September 2024 |
|
New Jersey |
January 2023 |
|
New Mexico |
August 2014 |
|
New York |
January 2019 |
|
Nevada |
December 2023 |
|
Ohio |
July 2023 |
|
Oklahoma |
October 2025 |
|
Oregon |
January 2025 |
|
Pennsylvania |
September 2025 |
|
Puerto Rico |
November 2008 |
|
Rhode Island |
September 2024 |
|
South Carolina |
August 2025 |
|
South Dakota |
January 2025 |
|
Tennessee |
June 2024 |
|
Texas |
October 2025 |
|
Utah |
September 2025 |
|
Vermont |
October 2025 |
|
Virginia |
August 2025 |
|
Washington |
February 2024 |
|
Washington D.C. |
N/A |
N/A |
Wisconsin |
December 2023 |
|
West Virginia |
June 2020 |
|
Wyoming |
March 2025 |