Most employers know that they have a duty to make a reasonable accommodation for an employee's disability or job restriction, but what that actually means in practice can be confusing. Statutes that require such accommodation are the Americans with Disabilities Act (ADA), 42 U.S.C. § 12101 et seq., and, in Massachusetts, the Massachusetts Fair Employment Practices Law, General Laws Ch. 151B. To fall under the protection of either statute, the employee must have a physical or mental disability (or handicap) that substantially limits one or more of his or her major life activities. The statutory definitions of major life activity are quite broad and can range from bodily functions to cognitive activities.