When is the next in-house training?

I concur with Stuart...contacting the SPCA directly is the way to go. Possibly, if you feel unsure of calling, you could contact them through the website or their FB page. Just remember that each SPCA is it's own entity. For example, the ASPCA wouldn't be able to answer your question.

Call them! These questions DO NOT, NORMALLY, get sent to the SPCA they go to other Google users whom have been there.

I have no idea. You need to call them.