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TAHC-Compliant Animal Movement

New World Screwworm (NWS) Animal Movement Guidance

The Texas Animal Health Commission, in collaboration with Texas A&M AgriLife Extension Service, provides animal owners, producers, veterinarians, NWS Certified Inspectors, and other stakeholders with a quick-reference guide to current New World Screwworm animal-movement requirements.

Open NWS Animal Movement Guidance

Texas Agriculture Alert

Alert Details
Department Texas Animal Health Commission
Created 07/20/2026
Action Quarantine Establishment
Category Reportable Livestock Pest
Subcategory Livestock
Disease / Pest Type New World Screwworm
Impact Location County
Scope of Impact Partial County
Summary New World Screwworm was detected in a bovine in Starr County on July 18, 2026. Animal movement restrictions have been imposed within the Infested Zone for parts of Starr and Zapata County. Please visit TAHC's website www.tahc.texas.gov for the latest information regarding New World Screwworm.
Additional Information https://www.tahc.texas.gov/regs/pdf/2026-07-18_NWS_EDO_StarrZapata.pdf