Regulatory affairs is a profession in business that deals with compliance with government regulations in the pharmaceutical industry and other sectors where such regulations are stricter and more prevalent. The scope of regulatory affairs reaches beyond the business of prescription drugs into all medical technology, veterinary products, nutritional supplements, and cosmetics industries. Government rules require products to undergo rigorous tests to ensure their safety and effectiveness, and that's where a regulatory affairs department goes to work. If you work in regulatory affairs, you're responsible for making sure that products pass the test at each stage of development. You also have to be certain that those products will do what the manufacturer claims that they do.