The U.S. government will limit a process that allowed people to sign up for health insurance under ObamaCare outside of the normal enrollment period. Typically, individuals have from about November to January to purchase insurance under ObamaCare. In some cases, though, they’re allowed to sign up outside that period, such as when they have a child.

The government is also tightening an exception that let people sign-up when they moved, by clarifying that people can’t get coverage based on a short-term or temporary relocation, the Centers for Medicare and Medicaid Services said in a blog post on Tuesday. It also plans to more tightly enforce other limits on enrollment by making sure people are qualified to sign-up in the remaining special circumstances.