1. A safe, temperature-comfortable place for the cat to go immediately after capture.
2. The ability to monitor the live trap around the clock and check it personally every hour (15 minutes in extreme weather); live-feed cameras are highly encouraged.
3. A lightweight, waterproof tarp to protect the trap from rain/snow or a cotton sheet for sun protection until the cat can be relocated to a sheltered holding area.
4. A food and water bowl inside the trap. Wee pads or an old towel under the trap. Use a tarp and towels under the trap inside a vehicle during transport. Cover the trap with a sheet to help keep the cat calm during transport.
5. A secured TNR appointment for the cat (spay/neuter/return) within a day or two of trapping.
6. A plan for checking the cat for a microchip (if the cat is socialized) at any local vet for free if the owner has not been located.
7. The resources to care for the cat properly: dry cat food, fresh water and a litter box for a socialized stray in a home and wee pads for an unsocialized cat in a trap until transfer.
8. A safe space for the cat overnight after surgery, with food and water. A cat can be injured or predated if released while still under the effects of anesthesia.
A spare bathroom or garage can work for temporarily holding a cat. Be aware of the physical possibility of fleas, worms, ear mites and vomiting or diarrhea.
Take precautions by using bite-proof Kevlar gloves/sleeves and/or heavy duty gloves if handling an unknown cat, especially if it is showing signs of fear or aggression. Always choose to patiently cajole the cat into a carrier or trap with bait; grabbing a cat is the last resort. Remember this rule: control the neck, control the cat. Hold the cat carefully but firmly behind the neck and quickly wrap in a towel if direct transfer out of a trapped space is needed.
NOTE: It is highly stressful for a cat to be forcefully kenneled and can often result in dangerous bites and scratches. Think like a cat to catch a cat and work with compassion.