Spay/Neuter & Vaccination Clinic

Low-Cost Vaccination Clinic

To learn about the appointment requirements for our Low-Cost Vaccination Clinic, please visit our Vaccination Clinic Page.

Vaccination pricing can be found on our Fees and Services Page.

Trap, Neuter, Release (TNR) Services

Beginning on Tuesday, August 17, 2021, CCAS will open our TNR program on a first come first served basis. The TNR program is available for unowned, feral or community cats only.  Please read our TNR criteria in the list below:

TNR Criteria 

  • At this time, we are offering TNR surgeries Tuesday, Wednesday, Thursday and Friday.
  • Drop off times are available between 9-9:30am Tuesday, Wednesday, Thursday and Friday only. 
  • Trappers should line up at our sign that reads "TNR Line." We will take as many as four (4) trapped cats a day, depending on our capacity. Our sign will indicate how many cats we are accepting each day. (See sandwich board sign at the front door when you arrive) 
  • TNR kittens must be at least 3 months old and at least 3lbs in weight.
  • Contra Costa County residents can bring up to two cats per person/address. You will need to show your ID or proof of residency, if it is not already on file. 
  • All cats will be "ear tipped."
  • Trappers will be required to sign paperwork at the time of drop off verifying there is no known owner for the cat(s) they bring in for TNR services.
  • CCAS reserves the right to keep cats for any reason, such as ones that are deemed medically necessary or those that may be candidates for adoption.    
  • All cats must be in humane cat traps, one cat per trap. Cats in carriers, or multiple cats in a trap, will not be accepted. 
  • TNR pick up is on the same day, from 3:30-4:00pm.  
  • Post surgery instructions for TNR cats can be found here.

*For owned animals, please see below for information about our Public Spay/Neuter Clinic. 

Public Low-Cost Spay/Neuter Clinic

Contra Costa Animal Services (CCAS) has opened our public Spay/Neuter Clinic on a limited, by appointment, basis while practicing social distancing. 

Spay/Neuter Clinic Requirements

  • The Spay/Neuter Clinic offers low-cost surgeries to residents of Contra Costa County only. Proof of residency is is required on or before the date of surgery. 
  • Within 24 hours of receiving your appointment date, you must provide proof of the following vaccinations. Dogs must have received both a Bordetella and DHPP vaccination. Cats must have received a FVRCP vaccination.
  • All fees are required to be paid within five days of your pet's scheduled surgery date. We will send you an invoice by email to pay online or in person at the shelter by making an appointment. Please advise the clerk whether you will pay online or in person when scheduling your appointment.  
  • Only two animals per household can be scheduled at a time. 
  • No animals under six months old or more than five years old. 
  • No brachycephalic, cryptorchid (undecended testicles) animals (cats or dogs) or Doberman Pinchers. (*See list of common brachycephalic breeds below.) 
  • Females cannot be pregnant or in heat. 
  • Females must be less than 65lbs. Males cannot be more than 90lbs.
  • Dogs must be under control, leashed or in carriers. Cats must be in secure carriers.
  • Dogs must be licensed before surgery.
  • Requests for appointments must be submitted online. Once you have been approved, you will be contacted for a potential appointment.
  • Check in is by appointment at 8:00am-8:45am. Pick up by appointment begins at 2:40. If you are late to check in your appointment may be cancelled. If you are late to pick up your pet, there will be an additional charge.
  • For the safety of our staff, if your pet is too aggressive for us to handle, we will not be able to provide spay/neuter services. 

Schedule an Appointment


*The CCAS Public Spay/Neuter Clinic is not currently accepting applications. 

To schedule a spay or neuter appointment, please complete this online form. Please make sure you have read the Spay/Neuter Clinic Requirements above before proceeding to the form. Once you have submitted the information required on the form, a staff member will contact you to schedule an appointment.

Post Surgery Pain Medication


We can provide your pet with 3 days of post surgery pain management for $25, upon request. You must request and pay for the medication at the time you schedule your appointment. The medication will be sent home with your pet after surgery is completed. 

Animals Not Suitable for Surgery

  • Brachycephalic dog breeds (see below)
  • Cryptorchid cats or dogs (animals who have undescended testicles)
  • Doberman Pinchers
  • Females who are pregnant or in heat

Common Brachycephalic Dog Breeds

This list is not all inclusive and approval is at CCAS’s discretion.

  • American Bulldog
  • Boston Terrier 
  • Boxer
  • Brussels Griffon
  • Cavalier King Charles Spaniel
  • English Bulldog
  • French Bulldog 
  • Japanese Chin
  • Lhasa apso 
  • Mastiff 
  • Pekingese 
  • Pug 
  • Shar-Peis
  • Shih Tzu

Free Physical Exam

Pets receive a free physical examination when brought in for spaying or neutering. 

Why should I spay or neuter my animal?

Spaying and neutering:

  • Prevents needless reproduction and destruction of animals
  • Is the most effective means of preventing pregnancy
  • Eliminates or reduces the attraction of male animals to the female
  • Reduces the male’s tendency to fight and the resulting wounds and infection
  • Reduces the possibility of cancer or infection of the reproductive tract
  • Results in a generally healthier, more desirable pet
  • Allows spayed and neutered dogs and cats to be licensed at a much lower cost than non-spayed or non-neutered animals