Under the California Fair Employment & Housing Act, it is unlawful for an employer or individual to harass an employee because of race, religion, color, national origin, ancestry, physical or mental disability, medical condition, marital status, sex, age or sexual orientation. The harassment on this basis must be sufficiently severe or pervasive such that it alters the conditions of employment and creates a hostile working environment. In the case of sexual harassment, it is also unlawful for an employee to condition a job benefit, or threaten any job detriment, in exchange for sexual favors. This type of harassment is referred as "quid pro quo" harassment. Federal law has similar prohibitions against harassment, although its coverage is for the most part less comprehensive than California law.