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Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 100,399
Nope. USA passports don't need a visa to visit Singapore as a tourist, but make sure your passport doesn't expire soon. IIRC six months' validity is required, but check the details.