Texas New World Screwworm Zones Change Horse-Travel Planning

Published: September 13, 2026  ·  Status: Active disease-control program

Texas animal-health officials began publishing eligible New World Screwworm infested zones in August 2026 after earlier detections in the state. Horse owners and boarding operations should understand that NWS controls can affect movement documents and inspections even when a horse itself is healthy.

What changed

New World Screwworm affects warm-blooded animals and spreads through larvae developing in wounds. State and federal responses focus heavily on surveillance, inspection, movement controls, and rapid reporting.

Why equine operations should care

For barns near affected areas—or barns accepting horses from them—the risk is operational: transport plans can change quickly and a normal health certificate may need additional documentation.

What operators should do now

• Check current TAHC and destination-state rules before hauling horses.
• Inspect horses carefully for wounds before travel.
• Coordinate movement documents with an accredited veterinarian.
• Record the origin and destination of incoming horses during active disease-control periods.

Keep written barn procedures, horse records, transport documents, and client communications aligned with the rules that actually apply to your operation. For related documentation, review the horse boarding contracts guide, Barn Setup, and the MyStableForms state package library.

This article provides general educational information and is not legal, veterinary, tax, transportation, or regulatory advice. Requirements and bill status can change.