dominican republic entrance documents

I am a permanent resident of the US (Green Card holder). Is having a Green card enough to enter the Dominican Republic as a tourist? Please advise.

Yes. According to the Ministry of Foreign Relations "all legal residents in the United States, independently of their nationality, but bearing up to date passports or national identity papers, may enter the country with the purchase of a tourist card."

You can purchase the tourist card upon arriving to the DR. Bring a pen and the exact change, US$10.