It became illegal for health insurance companies to deny children coverage based on their medical history last month. The government is now reminding insurance companies they must be in compliance with new regulations.

The U.S. Department of Health and Human Services Secretary Kathleen Sebelius wrote a letter to the National Association of Insurance Commissioners reminding them of their legal obligation. .

"We have been working closely with the states in their role as insurance regulators and with insurance companies to find ways to improve access to coverage for America's families," says Sebelius.

The majority of health insurance providers haven't been happy about this specific provision of reform. Some have fought back by not offering health insurance quotes for child-only policies. In an article written earlier this year, The Christian Science Monitor noted that from a health insurer's perspective, the coverage is suppose to help protect people from future incidents, not current problems. The Monitor made a comparison to auto insurance, saying it was similar to a motorist asking for help with an already damaged vehicle.