I am Working as ESA Therapist. The facts one should know before getting an ESA letter in Washington state.
Almost any animal can be certified as an emotional support animal (ESA), regardless of breed, size, or weight. Emotional support animals don't need any further training, in contrast to service animals.
Your pet can be certified as an ESA with just an ESA letter as proof. You don't have to register on one of the ESA's registration websites or obtain a unique badge or vest.
In the US, an ESA letter can only be written by a health practitioner who holds a valid state license. As a result, a licensed medical healthcare professional (LMHP) is legally permitted to assess patients and grant approval for ESA Washington state letters.
Your emotional support animal is allowed to travel with you on an aircraft.