Here's a novel idea. We can all take a few minutes over our morning coffee and donuts to actually read the whole 17 pages. That way we can speak knowledgeably about a proposed topic without sounding completely unreasonable. Just a thought anyway.
There is no mention of any limitations whatsoever in the preamble.
http://www.state.gov/documents/organization/140035.pdf
Good find, garlic! After reading it, I'm even more convinced it wasn't a bad deal. The only thing that even refers to missile defence is that neither side can disguise an ICMB as an interceptor and vice versa. Not a bad treaty, all in all and it's in simple language that anyone can understand.