Fixxer Answer The Question: What Can I Charge for in My craigslist Pet Adoption Ad?

craigslist USA - This explains the failure of including pet accessories using the "such as" reason.
It is more than simple, if you have a firm grasp of the English language.

"A small adoption fee may cover things such as vaccinations, neutering, and microchipping. Please specify fee amount in your posting."  From: https://forums.craigslist.org/?act=sticky&ID=40

The phrase "such as" in this statement does not reasonably include tangible pet accessories like collars, leashes, toys, crates, beds, or similar items.

Why?
The examples given, "vaccinations, neutering, and microchipping", are all veterinary medical procedures or services provided to prepare the pet for adoption. "Such as" introduces illustrative examples, so the category of "things" the adoption fee may cover refers to similar medical or health-related costs incurred by the shelter or rescue (e.g., deworming, flea/tick treatment, heartworm testing, or spay/neuter surgery).

Standard Practice:
Pet adoption fees typically cover these medical preparations, as confirmed by major organizations like Petfinder, ASPCA-affiliated shelters, and rescues:

Vaccinations

Spay/neuter

Microchipping

Testing/treatments

Tangible accessories are generally not included in the fee and are considered separate purchases for the new owner. While some shelters occasionally provide basics like a collar, leash, or starter food bag as a bonus, these are exceptions, not the norm, and are not grouped under the same category as the medical services listed in the statement.

If the posting intended to include free accessories, it would likely list them explicitly or use broader language. Based on the examples provided, tangible accessories fall outside the implied scope for the fee.
If you need to receive money for the pet accessories, feel free to list them in the appropriate for sale category.