But wait, wasn't this law passed with all the typical legislative language like "the government shall do X"? I guess they were only suggestions and the White House can ignore at its discretion. Obama said so:
Asked at a press conference today to discuss concerns about whether his administration has the authority to delay Obamacare’s employer mandate, President Obama declined to explain his administration’s authority and instead to simply assert it. But not before casting blame on Republicans. “In a normal political environment,” Obama said, he would have been able to call up House Speaker John Boehner and work out a fix. “We’re not in a normal atmosphere around here when it comes to quote unquote Obamacare. We did have the executive authority to do so.” There you go. Obama says the White House had the authority. Next question?So Obama can change the law because he can. Who's going to tell him differently - Eric Holder? Oh boy, that's not gonna happen.
Related - Opinion Journal: "Problems with Authority."