there was a receiver (Pittsburg guy I recall) that spent the last couple of years of his career in a prison in NY for carrying in NYC without a liscense.. who remembers the name? Oh yeah, he is shot himself in the leg in a bar....I recall.
NY won't agree. And, other states are somewhat vindictive toward NYers because of that. I got a permit in Fl after having a NY CCP for a dozen years.....I had to do the whole thing over for Fl. Good news was the Fl permit is good in 39 states (I think) NY has no reciprocity arrangement, contending other standards are to weak. I will admit, though, that my NY state NRA safety course did have cred in Fl.