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Importing and Exporting Pet Animals: Special Requirements for New World Screwworm​

Pets coming to California from another U.S. state or territory

​Any dog, cat, or other companion animal coming from a U.S. state or territory where the U.S. Department of Agriculture (USDA) maintains an active infested zone* for New​ World screwworm (NWS) must have the following documents, in addition to standard requirements, when entering California:

Coming from outside an infested zone​

  • Certificate of Veterinary Inspection signed by a USDA-accredited veterinarian stating that the animal was inspected and found to be free of NWS infestation within seven (7) days before arriving in California

  • ​​​California Entry Permit issued no later than 48 hours before arriving in California

Coming from inside an infested zone

  • ​Certificate of Veterinary Inspection signed by a USDA-accredited veterinarian stating that the animal was inspected and found to be free of NWS infestation within five (5) days before arriving in California​

  • NWS Animal Movement Certificate

    • You​​r veterinarian must request a NWS Animal Movement Certificate from the State Animal Health Official's office in the state where the animal is coming from (not California).

    • ​​​This certificate is not required if the animal is coming from an area outside of a NWS-infested zone, even if there are active infested zones elsewhere in the state. ​

  • California Entry Permit issued no later than 48 hours before arriving in California


* Visit the individual state's website to view active infested and surveillance NWS zones within the state, or contact the State Animal Health Official's office directly to confirm zone status. 

Pets coming to California from another country​

​Any pet dog or pet cat coming to California from a country or region where NWS is known to exist (including Mexico and Central America) must have the following documents, in addition to standard requirements, when entering California: 

  • ​Certificate of Veterinary Inspection signed by an accredited veterinarian stating that the animal was inspected within five (5) days before entering the U.S. and found to be free of NWS infestation​

  • ​(For Dogs Only) California Entry Permit issued no more than five (5) days before arriving in California​​

Pets leaving California and going to another country

​​Any pet dog or pet bird going to Mexico must have a NWS Inspection Certificate (PDF) signed by a USDA-accredited veterinarian within five (5) days before arriving in Mexico.​​

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