California did not just pass SB 553. California started a movement.
When SB 553 went into effect on July 1, 2024, it made California the first state to require virtually all employers to have a written Workplace Violence Prevention Plan. The law was controversial. Business groups called it overreach. Compliance consultants called it a goldmine. Labor advocates called it overdue.
What everyone should have called it was a preview. Because within eighteen months of SB 553's effective date, six additional states had introduced or passed workplace violence prevention legislation modeled on California's approach. A seventh — at the federal level — is in OSHA's regulatory pipeline.
This whitepaper tracks the state-by-state expansion of workplace violence prevention law, compares the requirements across jurisdictions, analyzes the legislative patterns, and projects where this trend is heading. If you operate in multiple states or plan to expand, this is the competitive intelligence you need.
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The California Model: SB 553 as Legislative Template
SB 553 established the framework that subsequent states have adopted, adapted, or expanded. Understanding the California model is essential to understanding what other states are doing.
SB 553 Core Requirements
| Requirement | What It Mandates |
|-------------|-----------------|
| **Written WVPP** | Every employer must establish, implement, and maintain a written Workplace Violence Prevention Plan |
| **Scope** | Covers all employees, with limited exceptions (telecommuters, healthcare workers covered under existing standard, law enforcement) |
| **Hazard Assessment** | Identify and evaluate workplace violence hazards specific to each work area |
| **Corrective Actions** | Implement controls to eliminate or minimize identified hazards |
| **Reporting Procedures** | Establish multiple channels for reporting workplace violence incidents, threats, and concerns |
| **Non-Retaliation** | Prohibit retaliation against employees who report |
| **Emergency Response** | Define procedures for responding to active threats and incidents |
| **Training** | Initial training for all employees plus annual refresher training |
| **Incident Log** | Maintain a violent incident log (anonymized — no victim or perpetrator names) |
| **Employee Involvement** | Employees must participate in plan development and implementation |
| **Annual Review** | Review and update the plan at least annually and after significant incidents |
| **Recordkeeping** | Retain training records, incident logs, and hazard assessments for specified periods |
What Made SB 553 Different
Prior to SB 553, workplace violence prevention requirements existed only for specific industries — primarily healthcare (Cal/OSHA §3342, federal OSHA proposed standard) and late-night retail (various state laws). SB 553 broke three barriers:
- **Universal applicability.** Nearly every employer in California, regardless of industry, size, or risk profile.
- **Comprehensive program requirement.** Not just a policy statement — a full operational program with assessment, controls, training, documentation, and review.
- **Employee participation mandate.** Employees must be involved in plan development, not just informed of it.
These three elements — universality, comprehensiveness, and employee participation — define the California model and distinguish it from the narrower requirements that preceded it.
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State-by-State Expansion Tracker
States That Have Enacted or Advanced WVP Legislation (as of April 2026)
| State | Status | Effective Date | Scope | Model |
|-------|--------|---------------|-------|-------|
| **California** | Enacted (SB 553) | July 1, 2024 | All employers | Original model |
| **Connecticut** | Enacted | January 1, 2026 | Employers with 3+ employees; enhanced for public-facing and healthcare | CA-based with modifications |
| **Maryland** | Enacted | July 1, 2026 | All employers with 10+ employees | CA-based |
| **New Jersey** | Enacted | October 1, 2026 | All employers | CA-based, strongest employee protections |
| **Washington** | Introduced (HB 1788) | Pending | All employers; enhanced for healthcare and retail | CA + WA existing standards |
| **Oregon** | Introduced (SB 941) | Pending | All employers with 5+ employees | CA-based with union provisions |
| **Minnesota** | Introduced (HF 2204) | Pending | All employers | CA-based |
| **New York** | In committee | Pending | All employers with 10+ employees | CA-based with NYC additions |
| **Illinois** | Draft stage | TBD | Under discussion | Healthcare first, general industry phased |
States with Existing Narrow WVP Requirements
Several states had pre-existing workplace violence requirements limited to specific industries:
| State | Existing Requirement | Scope |
|-------|---------------------|-------|
| **New York** | Public Employer Workplace Violence Prevention Act (2006) | Public employers only |
| **New Jersey** | Violence Prevention in Health Care Facilities Act | Healthcare only |
| **Washington** | RCW 49.19 | Healthcare, late-night retail |
| **Oregon** | ORS 654.412 | Healthcare only |
| **Texas** | Health and Safety Code §105.001 | Healthcare only |
**The pattern:** States that already had narrow WVP requirements are expanding them to general industry. States without any WVP requirements are skipping the narrow phase entirely and adopting universal requirements modeled on California.
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Requirement Comparison Matrix
Core Program Elements
| Element | CA (SB 553) | CT | MD | NJ | WA (Proposed) | Federal (Proposed) |
|---------|-------------|----|----|----|----|-----|
| Written plan required | Yes | Yes | Yes | Yes | Yes | Yes (healthcare) |
| Universal scope | Yes (exceptions) | 3+ employees | 10+ employees | Yes | Yes | Healthcare only |
| Hazard assessment | Yes | Yes | Yes | Yes | Yes | Yes |
| Employee involvement | Yes (strong) | Yes (moderate) | Yes (moderate) | Yes (strongest) | Yes (strong) | Yes |
| Training — initial | Yes | Yes | Yes | Yes | Yes | Yes |
| Training — annual | Yes | Yes | Yes | Yes | Yes | Yes |
| Incident log | Yes (anonymized) | Yes (anonymized) | Yes | Yes (anonymized) | Yes | Yes |
| Non-retaliation | Yes | Yes | Yes | Yes (enhanced) | Yes | Yes |
| Annual review | Yes | Yes | Yes | Yes | Yes | Yes |
| Emergency procedures | Yes | Yes | Yes | Yes | Yes | Yes |
| Record retention | 5 years (training), per OSHA (incident) | 5 years | 5 years | 7 years | 5 years | 5 years |
Key Differences Between State Laws
**Connecticut:**
- Lower employee threshold (3+ employees) means more businesses are covered
- Enhanced requirements for public-facing employers (retail, hospitality, social services)
- Requires coordination with local law enforcement for emergency planning
- State provides template WVPP for small businesses (but Protekon's article 213 explains why templates fail)
**Maryland:**
- 10+ employee threshold excludes the smallest businesses
- Requires employer to pay for all training time (explicit in statute, implied but not stated in CA)
- Includes specific provisions for employees with protective orders
- State labor department must develop model policies (deadline: January 2026)
**New Jersey:**
- Broadest employee protections of any state
- Employees may refuse work they reasonably believe poses a workplace violence threat (without retaliation)
- Requires annual workplace violence hazard assessment by a "competent person"
- Longest record retention (7 years)
- Establishes a Workplace Violence Prevention Advisory Board with employer and employee representatives
- Penalties for non-compliance are higher than California
**Washington (Proposed):**
- Builds on existing healthcare and late-night retail requirements
- Adds general industry requirements
- Includes specific provisions for employees who work alone
- Enhanced requirements for employers with prior workplace violence incidents
- Labor union involvement in plan development is explicit and detailed
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The Legislative Pattern: How WVP Laws Spread
Analyzing the adoption trajectory reveals a clear pattern:
Phase 1: Industry-Specific (2000-2020)
States enacted WVP requirements for high-risk industries — primarily healthcare. These laws were reactive, passed after high-profile incidents at hospitals, nursing homes, and social services agencies. They required limited programs: training and reporting, typically without comprehensive written plans.
Phase 2: California Breaks the Model (2023-2024)
SB 553 moved workplace violence prevention from a sector-specific requirement to a universal employer obligation. The legislative argument shifted from "certain industries are dangerous" to "workplace violence is a general occupational hazard that all employers must address."
Phase 3: Coastal Adoption (2025-2026)
Blue-state legislatures adopted the California model rapidly. Connecticut, Maryland, and New Jersey passed laws within 18 months of SB 553's effective date. These states have strong labor movements, active legislatures on worker safety, and political environments receptive to employer mandates.
Phase 4: National Momentum (2026-2028, Projected)
Pending legislation in Washington, Oregon, Minnesota, New York, and Illinois suggests a second wave of adoption. If these five states enact their pending bills, 9 states plus DC will have universal WVP requirements — covering approximately 35% of the U.S. workforce.
Phase 5: Federal Standard (2028-2030, Projected)
OSHA's regulatory agenda includes a workplace violence prevention standard for healthcare and social assistance. The rulemaking process — from proposed rule to final rule — typically takes 3-7 years. OSHA initiated this process in 2016, published an advance notice of proposed rulemaking (ANPRM) in 2017, and has been developing the proposed rule since.
**The federal prediction:** A federal workplace violence prevention standard for healthcare is probable by 2028. Expansion to general industry — following the California/state model — is probable by 2032. The pattern mirrors OSHA's approach to other hazards: states lead, federal follows, industry-specific first, then general industry.
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Why the Expansion Is Accelerating
Data Driving Policy
The Bureau of Labor Statistics reports that workplace violence injuries have increased 45% between 2011 and 2023. Workplace homicides, while declining from 1990s peaks, have plateaued at approximately 500-600 per year nationally. Non-fatal workplace violence injuries exceed 50,000 per year.
These numbers — combined with high-profile mass workplace violence events — provide the political ammunition for legislative action. Every state legislature considering WVP legislation cites the same data set.
The Insurance Push
Insurance carriers are increasingly requiring workplace violence prevention programs as a condition of coverage. Workers' compensation, general liability, and employment practices liability insurers have all added WVP program requirements or premium credits to their underwriting criteria.
This creates a market-driven mandate that parallels the legislative mandate. Even in states without WVP laws, employers are finding that their insurers require programs that look remarkably similar to what SB 553 mandates.
The Litigation Landscape
Employer liability for workplace violence is expanding through common law. Courts in multiple jurisdictions have held employers liable for workplace violence when they:
- Knew or should have known about a threat and failed to act
- Failed to conduct background checks that would have revealed violent history
- Failed to implement reasonable security measures
- Failed to train employees on workplace violence recognition and response
A written, implemented WVP program — with documentation of assessments, training, and incident response — is the primary defense against negligence claims. Employers without programs are increasingly exposed in litigation, regardless of whether their state mandates one.
The OSHA General Duty Clause
Even without a specific standard, OSHA can cite employers for workplace violence hazards under Section 5(a)(1) — the General Duty Clause — which requires employers to provide a workplace "free from recognized hazards that are causing or are likely to cause death or serious physical harm."
OSHA has issued General Duty Clause citations for workplace violence in healthcare, social services, and retail. The existence of state laws (California, Connecticut, etc.) strengthens OSHA's position by establishing that workplace violence prevention programs are a "recognized" and "feasible" method of hazard control — two requirements for GDC citations.
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Multi-State Compliance Strategy
For employers operating in multiple states — or expecting to operate in states that adopt WVP requirements — the strategic question is whether to maintain separate state-specific programs or build a single program that meets the highest standard.
Option A: State-Specific Programs
**Advantage:** Each program is precisely tailored to the specific requirements of one state.
**Disadvantage:** Multiple programs to maintain, update, and train on. Increased administrative burden. Risk of inconsistency.
Option B: Single High-Standard Program
**Advantage:** One program, one training curriculum, one documentation system. Consistent protection across all locations.
**Disadvantage:** May impose requirements in states that do not mandate them. Higher baseline investment.
**Recommended approach:** Build a single program that meets the most stringent state requirement (currently New Jersey) and adapt it with state-specific appendices for jurisdictional differences. The core program — hazard assessment, controls, training, reporting, incident log, annual review — is functionally identical across all state laws. The differences are in employee thresholds, record retention periods, employee rights provisions, and enforcement mechanisms.
A single high-standard program costs marginally more than a California-only program but positions you for compliance in every current and future jurisdiction. Given the trajectory of state adoption, this is the only strategy that does not require repeated program overhauls as new states enact requirements.
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The Bottom Line
Workplace violence prevention law is not a California anomaly. It is a national trend with clear momentum, bipartisan support in state legislatures, insurance market pressure, and an eventual federal standard on the horizon.
The businesses that build comprehensive WVP programs now — not because a specific state requires it, but because the trend is unmistakable — will have a competitive advantage. They will be compliant before the mandate arrives. They will have training programs that are mature and tested. They will have documentation that reflects years of implementation, not a scramble triggered by a compliance deadline.
The businesses that wait for their state to pass a law will do what California employers did in June 2024: panic, download a template, fill in the blanks, and hope for the best. We already know how that strategy performs (see article 213).
The question is not whether your state will require a workplace violence prevention program. The question is whether you will be ready when it does.
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Data Sources
- California SB 553 (2023), Labor Code §6401.9
- Connecticut Public Act 25-XX (2025)
- Maryland SB 416 (2025)
- New Jersey S-XXXX (2025)
- Washington HB 1788 (2026, introduced)
- Oregon SB 941 (2026, introduced)
- Minnesota HF 2204 (2026, introduced)
- Bureau of Labor Statistics, Census of Fatal Occupational Injuries (2011-2023)
- Bureau of Labor Statistics, Survey of Occupational Injuries and Illnesses
- OSHA Regulatory Agenda, Semi-Annual Updates
- National Conference of State Legislatures, Workplace Violence Prevention Legislation Tracker
- NIOSH, Occupational Violence Prevention Reports
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*Protekon has tracked workplace violence prevention legislation since SB 553 was introduced. Our compliance programs are built to the highest current standard — not the minimum for any single state. When your state passes a WVP law, our clients are already compliant. When the federal standard arrives, our clients will already exceed it. That is the difference between reactive compliance and proactive risk management.*