The maximum amount of marijuana considered to be for “personal use” under the new law is 5 grams — the equivalent of about four marijuana cigarettes. Other limits are half a gram of cocaine, 50 milligrams of heroin, 40 milligrams for methamphetamine and 0.015 milligrams of LSD.
http://www.nytimes.com/2009/08/21/wo...xico.html?_r=2
Well, there you go - perhaps we will see a lot of Americans, primarily dopers, moving to Mexico.....