(

a) This

chapter only applies to a county that has a population of less than 100,000 persons as of January 1, 2000, and to cities within that county. A county whose population exceeds 100,000 persons in a year subsequent to January 1, 2000, shall be subject to

Chapter 1 (commencing with

Section 31751) commencing on January of the year immediately following the year in which the population of that county exceeds 100,000 persons. (

b) Except as otherwise provided in this chapter, no public animal control agency or shelter, society for the prevention of cruelty to animals shelter, humane society shelter, or rescue group shall sell or give away any cat that has not been spayed or neutered. (

c) A public animal control agency or shelter, society for the prevention of cruelty to animals shelter, humane society shelter, or rescue group may not transfer to a new owner a cat that has not been spayed or neutered, except as provided in subdivision (d). (

d) A public animal control agency or shelter, society for the prevention of cruelty to animals shelter, humane society shelter, or rescue group may transfer to a new owner a cat that has not been spayed or neutered only if the public animal control agency or shelter, society for the prevention of cruelty to animals shelter, humane society shelter, or rescue group does both of the following:

(1) Requires a written agreement, executed by the recipient, acknowledging the cat is not spayed or neutered and the recipient agrees in writing to be responsible for ensuring the cat will be spayed or neutered within business days after the agreement is signed.

(2) Receives from the recipient a sterilization deposit of not less than forty dollars ($40) and not more than seventy-five dollars ($75), the terms of which are part of the written agreement executed by the recipient under this section. (

e) Public animal control agencies or shelters, society for the prevention of cruelty to animals shelters, humane society shelters, and rescue groups may enter into cooperative agreements with each other and with veterinarians in lieu of requiring spaying and neutering deposits to carry out this section.