Health Care Law's First Anniversary: Why Haven't Americans Seen Changes Yet?

2011: Individuals who make $85,000 or more, or couples with incomes of at least $170,000, would have to pay higher premiums, starting in 2011. And the federal premium subsidy will be cut to 74.5 percent, depending on a person's income.

2011: Starting this tax season, small businesses that qualify can start applying for tax credits under the new health care law for 2010 and beyond.

2011: Louisiana specifically will receive an expansion of $300 million in Medicare funding from the federal government.

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2014: Most Americans would be required to have health insurance or pay a fine, with the exception of low-income Americans. Small businesses, high-risk patients and the uninsured would have the option of shopping for coverage in health insurance exchanges, a marketplace in which people could shop for and compare insurance plans.

2014: Those who are at 133 percent of the federal poverty level, or $29,327 for a family of four, would be eligible for Medicaid, starting in 2014. Also in 2014, adults who don't have children would be eligible for such benefits that have traditionally only been given to households with children.

2014: Employers would also be required to provide coverage to their workers, or pay a fine of $2,000 per worker. Companies with fewer than 50 employees, however, are exempt from this rule.

ABC News' Karen Travers contributed to this report.