The results are based on a June 20-24 Gallup poll, which asked a series of questions on the ACA, the comprehensive healthcare reform bill signed into law by President Obama in 2010. Many of the law’s key provisions will go into effect January 2014. Gallup previously reported that more Americans thought the law would make the healthcare situation worse than better for themselves and the nation.

The subgroups that are less likely to be aware of the health insurance requirement are also the subgroups that are least likely to be insured, including Hispanics, blacks, young adults, and those in lower-income households.

The federal government is ramping up its efforts to increase awareness among the uninsured to purchase health insurance. Those who lack insurance can find and purchase a plan for 2014 through a government website starting Oct. 1.