Sources & Methodology

1. The Hierarchy at a Glance

Every page on animal-shelter.org/ is built from sources at the highest possible tier. Where Tier 1 (the local animal services agency or shelter itself) is available, we use it. Where Tier 1 doesn't publish what's needed, we work down. We never invert the hierarchy.

2. Tier 1 — Municipal Animal Services and Local Shelters

The municipal animal services agency is almost always our primary source. Each U.S. county and major city has one — sometimes a standalone department, sometimes within the police department, sometimes within environmental services or public health. Naming varies: “Animal Services,” “Animal Control,” “Animal Care & Control,” “Animal Regulation.” We use the official agency name as published.

3. Tier 2 — Professional Bodies

4. Tier 3 — National Non-Profits

5. Tier 4 — Federal Agencies and Frameworks

6. Tier 5 — State Law Framework

Animal welfare in the U.S. is heavily state-and-local. We track state-by-state for these key concepts:

• Cruelty statutes — every state has one; ALDF’s annual state rankings track relative strength
• Felony cruelty — present in every state since 2014 (South Dakota was the last to enact)
• Rabies-vaccination requirements — most states mandate; species and timing vary
• Quarantine periods after a bite — 10 days in most states (CDC framework)
• Stray-hold periods — typically 3-7 days before unclaimed animals become shelter property
• Dangerous-dog statutes — many states have a three-tier classification
• Breed-specific legislation (BSL) — present in 700+ U.S. cities/counties; Maryland is the only state with a state-level pit-bull-specific statute (modified by 2014 legislation)
• Hot-car / right-to-rescue statutes — about 16 states
• Pet-protection-order statutes — many states allow pets to be included in domestic-violence protective orders
• Service-animal misrepresentation laws — many states criminalise misrepresenting an untrained pet as a service animal
• State department of agriculture / livestock board — handles farm-animal welfare
• State public-health department — administers rabies framework

7. Tier 6 — Reputable Animal-Welfare Press and Research

• Animal Sheltering Magazine (HumanePro)
• The Veterinary Information Network (VIN) shelter-medicine resources
• Journal of the American Veterinary Medical Association (JAVMA)
• Journal of Applied Animal Welfare Science
• Animals (MDPI peer-reviewed journal)
• National investigative journalism on puppy mills, hoarding, animal fighting (e.g., HSUS undercover investigations as covered by reputable mainstream press)
• Used for background only — never as the sole source for a current contact or procedure

8. Microchip Registries

Microchip registration in the U.S. is fragmented across many private registries. Federation through AAHA Universal Pet Microchip Lookup is essential for lost-pet recovery.

9. Adoption Platforms

10. Federal Laws — Quick-Reference Table

11. State Law Concepts — How We Cover Them

Each state’s framework is distinct. Per-state pages document:

• The cruelty statute, with felony tier where applicable
• The rabies-vaccination law and quarantine framework
• The stray-hold period
• The dangerous-dog framework
• BSL where in force (state, county, or city level)
• Pet-protection-order availability in DV cases
• Hot-car / right-to-rescue status
• Service-animal misrepresentation framework
• The state department of agriculture or veterinary medical board
• The state attorney general’s charity bureau (for non-profit oversight)

12. Sources We Deliberately Avoid

• Breeders, puppy mills, and “designer dog” outlets — counter to our editorial position on adopt-don’t-shop
• Online pet-classifieds without welfare standards — venues that have facilitated puppy-mill sales and pet-resale fraud
• Ear-cropping, tail-docking, and devocalisation services — practices the AVMA and most state veterinary boards advise against for cosmetic reasons
• Dog-fighting paraphernalia retailers
• Aggregator sites without primary-source attribution — if we cannot trace a contact back to the agency’s own page or a verified call, we don’t publish it
• Anonymous tips and crowdsourced submissions as primary source — animal-shelter.org/ content is editorial
• Outdated agency pages — when an agency redesigns its waste portal, we update; the old URL doesn’t survive on our pages
• Marketing material from veterinary chains as a substitute for AVMA / state-board guidance

13. The Verification Workflow

Every page is built through the same workflow:

• Identify the relevant municipal animal services agency
• Locate the official .gov page and confirm it loads
• Capture and dial-test the main phone number
• Verify the address against the agency’s contact page and USPS ZIP+4
• Document hours and after-hours protocol
• Cross-reference Tier 2-4 references against each body’s own page
• Cross-reference state law for cruelty / rabies / stray-hold / BSL
• Editor sign-off — second editor reviews end-to-end including the emergency-routing block
• Quarterly re-verification — every external link is tested and every shelter contact is checked
• Expedited 48-hour path for reader-reported broken contacts

14. Source-Driven Corrections

If you spot a source error — a phone number that no longer reaches the agency, an address that’s no longer current, an outdated statute citation — please tell us. Source corrections are our highest-priority queue. Email info@animal-shelter.org with subject “Source correction” and include the page URL, the statement you believe is wrong, and the authoritative source supporting the correction.