State internship laws often impose stricter requirements on internship contracts than federal standards, particularly regarding wages and eligibility. Under federal law from the Fair Labor Standards Act (FLSA), unpaid internships must primarily benefit the intern and not displace regular employees, but states like California and New York add more rigorous criteria. For instance, California's Industrial Welfare Commission mandates that unpaid interns in for-profit companies receive the same protections as employees unless they meet specific educational criteria, ensuring fair compensation in most cases.

In New York, the Department of Labor requires that for-profit employers pay interns minimum wage unless the internship is part of a formal educational program, contrasting with more lenient federal guidelines that allow broader unpaid opportunities. This variation impacts internship contracts by necessitating detailed documentation to comply with state-specific rules, such as proving the internship's educational value. Employers must tailor agreements to avoid penalties, like back wages or fines, highlighting the need for legal review in these jurisdictions.

Other states, such as Texas or Florida, more closely align with federal wage standards, permitting unpaid internships with fewer hurdles, which can attract more programs but risks exploitation. To navigate these differences, businesses often consult resources like the U.S. Department of Labor's FLSA page or state labor departments for compliance. Understanding these state variations in internship laws is crucial for creating enforceable contracts that protect both interns and employers.