Please read the information contained on this page
so that you are aware of our participation requirements
and arrive at our mobile Vaccine Clinics fully prepared.


at our

Tustin, Rancho Santa Margarita, and Placentia Clinic Locations

Clinics held at other locations may be by Appointment Only or on a Walk-up basis.

Please view our website Calendar for that information.

Click here to view our Calendar, then click on the respective date for details about that particular clinic.


~ Pet owners from any city or county may attend any of our clinics. 

~ Pet owners must be at least 18 years of age to participate. Minors must be accompanied by an adult. 

~ All pets over the age of 3 months will receive a Rabies vaccination at our clinic unless the pet is current on its Rabies vaccination and proof of that vaccination is provided at the time of pet’s appointment. Valid and acceptable proof is a Rabies Certificate signed by a veterinarian licensed to practice in the United States. 

~ By California law, pets must be at least 3 months old to receive a Rabies vaccine, and any pet receiving its initial Rabies vaccination, regardless of age, can only receive a 1-year Rabies vaccine.  

~We are able to administer a 3-year Rabies vaccine if you show proof that

   1) Your pet is not more than 3 years overdue for its Rabies vaccine booster; AND 

   2) Your pet is at least 15 months old and received its first Rabies vaccine at least one year (365 days) prior to our clinic date; OR 

   3) Your pet is at least 15 months old and has received at least one 3-year Rabies vaccine booster at any time prior to our clinic date (in this case, there is no 365 day requirement as reflected in #2 above).


~ Bring other prior vaccine records if possible. This will enable us to determine what vaccines are needed for your pet and the next time they will be due. We do our best to ensure that pets are properly vaccinated and also not “over” vaccinated. 

~ Fearful or unfriendly dogs must wear a muzzle prior to entering our clinic line or coming in close proximity with another animal. A properly fitting basket muzzle is recommended, as other types may cause your dog to overheat. If you do not have a muzzle, a restrictive muzzle will be provided for your use only during the time our staff is handling your dog. 

~ Dogs must wear a properly fitting collar or harness so that your dog is secure and cannot slip out of its collar/harness, especially when pulling backwards. A sturdy leash must be attached to the collar/harness. No chains or expandable leashes are permitted. In the event your dog needs better control, for the safety of your pet and for others nearby, we may require you to place our slip lead on your dog temporarily. 

~ All cats must be in secured carriers designed to transport cats or small dogs. No cardboard carriers are allowed. 

~ If your pet receives a microchip, do not bathe it for 2 weeks after the microchip is implanted. The microchip enrollment fee has been pre-paid by HEART; however, it is your responsibility to register your pet on line or by phone and keep your contact information current with the respective microchip company. Your pet cannot be reunited with you if it becomes lost and if you cannot be found! 

~ Nail trims are provided only if we have the extra time and only for pets which are cooperative and easy to manage.  

~ Prescription flea & tick control medication is sold in quantities of 1 month to 12 month supplies (depending on the stock on hand). We do not provide prescriptions. 

~ Please be courteous to everyone and reschedule your appointment if you or household members have shown any signs of illness within 10 days prior to your appointment. 

~ You will receive a yellow copy of a Certificate of Vaccination before you leave our clinic, along with other informational materials such as post-clinic care instructions and a list of emergency pet hospitals. You are responsible to keep your copy of the Certificate. A $25 processing fee will be charged for any duplicate Certificates. 

We cannot vaccinate pets which

~ Are too aggressive to be handled, especially cats. If your pet is likely to be difficult to handle, please do not schedule an appointment at our clinic, as we are limited on time that we are able to spend with each pet and must refuse service for any pet which cannot be handled with minimal restraint.

~Have ever had an adverse reaction to a vaccine (other than mild soreness or mild lethargy). 

~May have shown any sign of illness within the past 2 weeks; 

~ May be pregnant; 

~ Are nursing puppies/kittens that are less than 4 weeks old; 

~May have certain underlying health conditions or are on certain medications which, when administering a vaccination, may pose a health risk to the pet.


1) Click on the button below to schedule your pet’s appointment. All appointments require a $22 deposit per pet which is credited towards the services to be rendered. Deposits are refundable only if you cancel via email no later than 24 hours prior to the date of your appointment; however, a $2 administration fee will be deducted from the refund. Please send your cancellation request to: [email protected] and write “CANCEL APPOINTMENT” in the subject line. 

2) If you are bringing more than one pet, you must schedule each pet’s appointment individually and separately. You will be provided with an appointment time; however, that time simply reflects a 30-minute “time slot” in which you must arrive. (For example, if you receive a 7:00 pm appointment time, you must arrive between 7:00 and 7:30 pm.) To help reduce long lines and waiting times, please do NOT check in sooner than that time frame. 

3) In the event you have multiple pets and there are not enough available openings in one “time slot”, OR if your pet is in a vaccine “series” wherein it must receive its 2ndor 3rdvaccination within a 2-6 week period after its last vaccination and there are no available appointments, please call us at (714) 993-9193 and we will do our best to accommodate you. 

4) If the appointment scheduler will not allow you to make an appointment, then no openings are available at this time; however, we do receive cancellations, so please check back daily

In the very rare instance that a clinic must be cancelled due to harsh weather conditions or other dangerous or emergency situation, a notice will be posted on our website Calendar as soon as it is known that the clinic must be cancelled. We will also attempt to contact everyone to provide the opportunity to reschedule their appointments to another day. In the event we are not able to contact you, please contact us.