Fort Worth, Texas

• Spaying is mandatory for dogs and cats over 6 months of age, and neutering is mandatory for cats and dogs over 8 months of age.
• Certain animals can be exempted with an intact-pet permit.

Sec. 6-22.1. – Intact pet permit.
(a) Offenses. (1) A person commits an offense if the person owns, keeps, harbors, or has custody of any female dog or cat over six (6) months of age or of any male dog or cat over eight (8) months of age that is unaltered unless such person has a valid intact pet permit issued in accordance with this section.
(2) A person commits an offense if the person owns, harbors, or has custody of an unaltered dog or cat and fails to display on such dog or cat at all times a valid city combined license/rabies tag indicating that the animal is subject to an unaltered pet permit.
(3) A person commits an offense if the person owns, harbors, or has custody of a dog or cat and displays on such animal a tag indicating that the animal is subject to an unaltered pet permit issued to another person.
(4) A person commits an offense if the person owns, harbors, or has custody of an intact animal at the residence or business property of an individual who has had a permit revoked under subsection (e), regardless of whether another person at the same property holds a valid permit.
(5) A person commits an offense if the person advertises for sale within the City or Fort Worth an unaltered dog or cat and fails to include in such advertisement the identification number of the owner’s city-issued intact pet permit.