An opportunity for low-income Federal Way residents to spay or neuter their pets is available until Sept. 17. Kittens two to six months can be altered for free. Puppies two to six months can be altered for $10. Schedule an appointment with the Coaliton: Humane Spay/Neuter Clinic, 2106 Tacoma Ave. S., in Tacoma, by calling (253) 627-7729 or visiting www.coalitionhumane.org.