The administration basically toned down W's overly broad 'conscience clause" which gave anyone involved in healthcare the right to refuse any sort of medical care for any reason, and defined a route that can be taken by those that feel that they have been forced to perform procedures that 'violated their conscience'.

Today, the Obama administration waded back into the controversy over abortion. It issued new rules related to what's called the Conscience Clause. The rules are intended to strike a balance between the rights of doctors and nurses not to perform procedures that violate their beliefs and the rights of patients to obtain medical care. By issuing these news regulations, the administration repealed major parts of a rule from the Bush administration.
White House Revises Bush-Era 'Conscience Clause' : NPR