1.1 OSH Act Purpose, Scope & General Duty Clause

1.1 OSH Act Purpose, Scope & General Duty Clause

Legislative Origin and Core Purpose

The Occupational Safety and Health Act of 1970 (Public Law 91-596, codified at 29 U.S.C. §§ 651–678) was signed into law by President Richard Nixon on December 29, 1970, and officially took effect on April 28, 1971. Enacted during a period of rising industrial injury and fatality rates, Congressional intent was clearly articulated in Section 2(b) of the Act: "to assure so far as possible every working man and woman in the Nation safe and healthful working conditions and to preserve our human resources."

To execute this broad statutory mandate, the OSH Act created three distinct federal entities, each assigned independent responsibilities:

1. Occupational Safety and Health Administration (OSHA): Situated within the U.S. Department of Labor (DOL), OSHA is the primary regulatory and enforcement agency. It promulgates mandatory workplace safety and health standards, conducts inspections, issues citations, and proposes civil monetary penalties.
2. National Institute for Occupational Safety and Health (NIOSH): Established within the Centers for Disease Control and Prevention (CDC) under the Department of Health and Human Services (HHS), NIOSH functions as an independent scientific research institution. NIOSH conducts toxicological studies, performs Health Hazard Evaluations (HHEs), recommends exposure limits, and trains occupational health professionals, but has no regulatory enforcement authority.
3. Occupational Safety and Health Review Commission (OSHRC): An independent, quasi-judicial federal agency entirely separate from the Department of Labor and OSHA. OSHRC adjudicates contested citations, monetary penalty assessments, and abatement orders issued by OSHA to employers.

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Statutory Scope and Jurisdictional Boundaries

OSHA's regulatory jurisdiction covers most private-sector employers and their employees across all 50 U.S. states, the District of Columbia, Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, and other maritime territories under federal jurisdiction. However, Congress delineated explicit statutory boundaries defining who is covered and who is excluded.

Covered Workplaces

• All private sector businesses with one or more employees, regardless of industry sector, company size, or non-profit status.
• Agricultural operations employing 11 or more non-family workers.
• Federal executive branch agencies (covered under Section 19 of the Act and Executive Order 12196; federal agencies must maintain safety programs equal to private sector standards, though enforcement relies on administrative notices rather than civil fines).

Statutory Exclusions and Preemption Under Section 4(b)(1)

Section 4(b)(1) of the OSH Act establishes a key jurisdictional rule: federal OSHA standards do not apply to working conditions where other federal agencies exercise statutory authority to prescribe or enforce occupational safety or health regulations. Major Section 4(b)(1) preemptions include:

• Mine Safety and Health Administration (MSHA): Governs safety and health in surface and underground mining, processing plants, and quarries under 30 CFR.
• Federal Railroad Administration (FRA): Regulates railroad operating rules, track safety, and locomotive cab environments.
• Federal Aviation Administration (FAA): Governs flight deck crew and cabin crew safety during flight operations.
• U.S. Coast Guard: Oversees commercial vessel crew safety and maritime navigation operations.
• Self-Employed Individuals: Sole proprietors and independent contractors with no employees are excluded.
• Family Farms: Agricultural operations employing only immediate family members (reinforced by annual Congressional appropriations riders excluding farms with 10 or fewer non-family employees).

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State Plans (Section 18)

Section 18 of the OSH Act provides a framework for individual states to assume responsibility for developing and enforcing their own occupational safety and health programs. To receive federal approval, a State Plan must promulgate standards and enforcement procedures that are "at least as effective" (ALAE) as federal OSHA standards. OSHA has approved 29 State Plans in total: 22 cover both private-sector and state/local government workers, and 7 cover state and local government workers only.

State Plans retain legal authority to enact more stringent safety standards than federal OSHA (e.g., Cal/OSHA's specific heat illness prevention and ergonomic standards).

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Section 5: Employer and Employee Statutory Duties

Section 5 of the OSH Act codifies the statutory duties imposed on employers and employees:

Section 5(a)(1) — The General Duty Clause

Section 5(a)(1) mandates:

"Each employer shall furnish to each of his employees employment and a place of employment which are free from recognized hazards that are causing or are likely to cause death or serious physical harm."

The General Duty Clause serves as OSHA's primary enforcement vehicle for serious workplace hazards that lack a specific 29 CFR standard (such as workplace violence, ergonomic stressors, or ambient extreme heat stress). However, OSHA compliance officers cannot cite Section 5(a)(1) arbitrarily. To sustain a General Duty Clause violation before OSHRC, OSHA bears the burden of proving four mandatory legal elements:

1. Existence of a Hazard: A condition or activity in the workplace exposed employees to a hazard.
2. Recognition of the Hazard: The hazard was recognized either by the specific employer (actual knowledge through internal audits, safety committee notes, or injury records) or within the employer's industry (constructive knowledge / industry-wide awareness).
3. Likelihood of Death or Serious Harm: The hazard was causing or likely to cause death or serious physical harm (e.g., organ damage, fractures, amputations).
4. Feasible Abatement Method: A practical, economically and technologically feasible method existed to eliminate or materially reduce the hazard.

EXAM FOCUS: OSHA is legally barred from issuing a Section 5(a)(1) citation if a specific 29 CFR standard already applies to the hazard. For example, citing Section 5(a)(1) for an unguarded circular saw when 29 CFR 1910.212 specifically covers machine guarding is an invalid citation.

Section 5(a)(2) and Section 5(b)

• Section 5(a)(2): Mandates that each employer shall comply with occupational safety and health standards promulgated under the Act (the specific 29 CFR 1910 standards).
• Section 5(b): States that each employee shall comply with occupational safety and health standards and all rules, regulations, and orders issued pursuant to the Act. However, OSHA has no statutory authority to issue citations or levy civil fines against individual employees; all enforcement actions and monetary penalties are assessed strictly against the employer.