Fair Labor Standards Act (FLSA): Federal law governing minimum wage, overtime pay, and employee classification (exempt vs. non-exempt). Must be considered when specifying compensation terms in offer letter.

Equal Employment Opportunity Laws: Collection of federal laws including Title VII, ADA, ADEA, and Equal Pay Act that ensure non-discrimination in employment. Affects language and terms of employment offer.

Immigration Reform and Control Act: Federal law requiring verification of employment eligibility. Relevant for including I-9 verification requirements in offer letter.

Family and Medical Leave Act (FMLA): Federal law governing unpaid leave rights for eligible employees. Should be referenced if company meets size requirements (50+ employees).

State Wage and Hour Laws: State-specific requirements for minimum wage, overtime, and work hours. Must comply with both federal and state standards, applying whichever is more favorable to employee.

State Leave Laws: State-specific requirements for paid sick leave and other types of leave. Must be acknowledged in employment terms.

State At-Will Employment Provisions: State-specific rules regarding at-will employment relationship and any exceptions. Should be clearly stated in offer letter.

Worker Classification Rules: Federal and state guidelines for properly classifying workers as employees vs. independent contractors. Affects structure and content of hire document.

Non-Compete and Confidentiality Laws: State-specific restrictions on non-compete agreements and trade secret protection. Relevant for any restrictive covenants in offer letter.

Arbitration Requirements: Federal and state rules governing mandatory arbitration provisions in employment agreements. Affects dispute resolution terms.