Trap, Neuter, Vaccinate, Return (TNVR)

Trap, Neuter, Vaccinate, Return (TNVR), formerly known as Trap, Neuter, Release (TNR), is the most humane and effective way to reduce the free-roaming, un-owned cat population.

In 2013, The Humane Society of Pinellas played an integral part in passing the Pinellas County ordinance that made TNVR legal in our community. TNVR aids in reducing the stray cat population by spaying and neutering community cats, as well as reduces the spread of disease through appropriate vaccinations. 

What is tnvr?

TNVR is a process in which cats are humanely captured in traps in order to have them altered. The majority of these cats are not social with humans, so they are lured into traps with food. Once inside the trap, the cat's weight triggers the trap door to close and the cat is safely enclosed inside. The cat is then transported to The Humane Society of Pinellas or other participating organizations for spay/neuter surgery. The cat is also vaccinated and its ear is tipped so community members know the animal is altered. Once recovered, the cat is returned to its colony to live out the remainder of its natural life.

benefits of tnvr

Humanely reducing the free-roaming cat population is only one of the many benefits of TNVR. Since all cats in the program are vaccinated against viruses such as rabies and distemper, the risk of other animals and humans contracting these diseases is reduced. Altered cats are less likely to exhibit nuisance behaviors, such as howling, fighting, roaming and urine marking. Furthermore, TNVR supports HSP's mission of reducing shelter euthanasia, as these cats are no longer able to reproduce and overpopulate our community. 

how you can help

The Humane Society of Pinellas offers both humane trap rentals, as well as free sterilization for un-owned, free roaming community cats. Community cat sterilization surgeries are booked by appointment only through our Pet Resource Office.

Please note that HSP does not trap community cats. All trapping must be done by the individual or by humane trapping organizations, such as Meow Now! HSP provides spay/neuter services to community cats to humanely reduce the free-roaming cat population. 

tnvr surgeries at hsp

Our sterilization surgeries are booked by appointment only and are dependent on our current surgery schedule. You must contact our Pet Resource Office to book your appointment by calling 727-797-7722 ext. 232. Cats will not be accepted as “walk-ins” for surgery or other TNVR services. The Pet Resource Team will provide you with all the information you will need to know regarding humanely trapping the cat(s) prior to surgery, your appointment date/time and post-operative information. Please arrive on time or we may not be able to accept the animal for surgery.

All animals must be in a humane trap for surgery. Cats in carriers will not be accepted. All cats will be sterilized, ear-tipped, microchipped and given a rabies vaccine. All cats must be picked up after surgery or they will be returned to the location of origin. Please note, if the cat is domesticated, the Humane Society of Pinellas will accept the cat into our adoption program after making attempts to reunite the pet with a potential owner.

HSP relies on grant funding for our TNVR services. If you are interested in donating towards the TNVR cause, please contact our Development Team at or call 727-797-7722 ext. 229.

For more information, or to book your surgery appointment please contact our pet resource office at 727-797-7722 ext. 232.

Can't be out in the field? Our TNVR program can be supported through your generous donations. HSP spends thousands of dollars annually altering community cats and receives no government funding to carry out this mission. Find out how you can donate to our cause!