The Right to Access
Federal and state laws strictly protect the right of disabled individuals to be accompanied by trained service animals in all areas where the general public is normally allowed.
The Americans with Disabilities Act (ADA)
Under federal law, a service animal is defined as a dog that is individually trained to do work or perform tasks for the benefit of an individual with a disability. The tasks performed must be directly related to the handler's disability.
What You May Ask
Under the ADA, when a service dog's disability-connection is not immediately obvious, staff at any business or public facility may ask only two questions. Nothing more.
The Only Two Permitted Questions
Once these questions are answered, access must be granted immediately.
What the Law Requires
There are exactly two behavioral standards a service dog must meet under the ADA. No more. Expectations beyond these two requirements have no basis in law.
Requirement 1: Under Control
The dog must be under the handler's control — typically via a harness, leash, or tether. If the handler's disability prevents tethering, or if tethering interferes with the task, voice commands or hand signals are equally valid under the law.
"Under control" means the handler can direct the dog. It does not mean the dog must be motionless, silent, or rigidly stationary.
Requirement 2: Housebroken
The dog must be reliably housebroken. This is the second and final behavioral requirement stated in the ADA.
There are no other behavioral standards mandated by federal law. Silence, perfect stillness, breed, size, gear, posture — none of these are legal requirements.
When a Service Dog May Be Asked to Leave
Only two circumstances legally justify asking a handler to remove a service dog:
2. The dog is not housebroken.
Even then: the handler must be offered the same goods or services without the dog present. Removal of the dog is never grounds for denying service to the handler.
Important: A single bark, an alert vocalization, moving toward the handler, standing up, or noticing environmental stimuli does not constitute being "out of control." The threshold is sustained, disruptive behavior that the handler fails to address.
Colorado State Protections
In addition to federal laws, Colorado state law protects the rights of handlers and explicitly extends public access rights to Service Dogs in Training (SDITs), provided they are under control and actively training. Colorado law also establishes strict penalties for businesses that wrongfully deny access to legitimate service teams, as well as penalties for the intentional fraudulent misrepresentation of a service animal.
Owner/Handler Training — Fully Legal
Under both the ADA and C.R.S. § 24-34-803, professional training is not required. An owner may train their own service dog. There is no mandated curriculum, no minimum training hours, and no required certification — in Colorado or federally.
Service Animals In Training
Colorado law goes further than the ADA: a service animal in training — accompanied by a trainer or owner — has the same public access rights as a fully trained service animal. (The ADA does not protect dogs still in training; Colorado does.)
C.R.S. § 24-34-803(2)(a)
What Documents Exist & Where They Matter
Things That Don't Exist (Legally)
- "ADA Certification" — no such program exists
- National Service Dog Registry — none exists
- Required ID card or vest
- Government-issued service dog license
- Mandatory training records
Online registries and certification kits are commercial products. They have no legal authority and cannot be required by any business.
Things I Actually Have
- A physician's letter confirming anosmia diagnosis
- A physician's letter confirming the medical need for a smoke-alert service dog
- A dog trained through consistent, documented sessions to alert to smoke
These are above and beyond what any law requires. Their existence is voluntary. No business has the right to demand them.