While visiting our friends in the US on vacations we would like to get married there, but neither of us are citizens of the US.

**Which states allowing same sex marriage in the US for two foreigners** on vacation?
I found lots of [states which allows same-sex marriage][1] for the US citizens, including: Massachusetts, Connecticut, Iowa, Vermont, New Hampshire, Washington D.C., New York, Washington, Maine, Maryland, California, Delaware, Minnesota, Rhode Island, New Jersey, Hawaii, New Mexico, Oregon, Pennsylvania, Illinois. But it is unclear is it possible to do get married in case we are both non-citizens (citizens for some other country, not the US)?

**How long should it take** (in each state) to do that (if there any waiting period between applying for marriage license)? 

 - Illinois has mandatory [one-day waiting period][2]. 
 - Massachusetts has
   a [three-day waiting period][3] before issuing marriage licenses.
 - Iowa has [three-day waiting][4] period.
 - Washington state requires a [three-day waiting period][5] (excluding the day of issue) before a marriage certificate may be signed.
 - Pennsylvania could request and receive marriage licenses immediately and marry after a mandatory [3-day waiting period][6].

**How much it'll cost** (in each state)  and **which countries will recognize it** abroad?

**How to contact** a government of a state to find out all the details and to receive "official statement" on the subject?

The [same question regarding the UK][7] is here.


  [1]: http://en.wikipedia.org/wiki/Same-sex_marriage_in_the_United_States
  [2]: http://en.wikipedia.org/wiki/Same-sex_marriage_in_Illinois
  [3]: http://en.wikipedia.org/wiki/Same-sex_marriage_in_Massachusetts#First_same-sex_marriages
  [4]: http://en.wikipedia.org/wiki/Same-sex_marriage_in_Iowa#Background
  [5]: http://en.wikipedia.org/wiki/Same-sex_marriage_in_Washington_state#Same-sex_marriage_referendum
  [6]: http://en.wikipedia.org/wiki/Same-sex_marriage_in_Pennsylvania#Legal_challenges
  [7]: https://travel.stackexchange.com/questions/35987/same-sex-marriage-in-the-uk-for-foreigners-on-vacation