A rider is an amendment to an insurance policy. Some riders will add coverage (for example, if you buy a maternity rider to add coverage for pregnancy to your policy). In most states today, an exclusionary rider is an amendment permitted in individual health insurance policies that permanently excludes coverage for a health condition, body part, or body system. Starting in September 2010, under the Affordable Care Act, exclusionary riders cannot be applied to coverage for children. Starting in 2014, no exclusionary riders will be permitted in any health insurance.