Read out tips on how to avoid age discrimination when applying for a job. The Age Discrimination in Employment Act (ADEA) forbids age discrimination against people who are age 40 or older.The ADEA is a federal law that prohibits discrimination on the basis of age for employees and job candidates over the age of 40 years old. We represent Colorado employees in disputes against their employers stemming from illegal discrimination, unpaid wages or other compensation. When Age Discrimination Isn't Only About Age Appellate Division Reinforces flexible Approach to Prima Facie Burden in Age Discrimination Cases. An employer treats younger coworkers better even though they have a similar role or qualifications as older team members. Completing a Charge of Discrimination. The ADEA is a federal law that prohibits discrimination on the basis of age for employees and job candidates over the age of 40 years old. If your employer, supervisor, or HR representative has made a comment or joke about your age, it's direct evidence of age discrimination. If age played a role in the employer's decision about whom to lay off, the termination of these employees may be discriminatory.