Hawaii Drug Testing Laws for Employers

Mandatory, With No Safe Harbor

HRS chapter 329B regulates every workplace test in the state through a flat prohibition rather than an incentive. No third party shall require, request or suggest that any individual submit to a test that does not meet all the requirements of the chapter — the only exception being testing covered by a DOT or other federal agency regulation.

Third party is defined as any person, agency, employer or other entity requesting testing of another person, including designated staff. No size threshold, no carve-out for office roles.

The enforcement architecture is what multi-state employers underestimate:

• Invalidation. Failure to adopt or adhere to all the chapter's procedures invalidates the result, and the result may not be reported or otherwise used for any purpose.
• Penalties. $1,000 to $10,000 per violation for a wilful and knowing breach, as set by the department, plus reasonable court costs and attorney's fees — all payable to the aggrieved person, and expressly without limiting actual damages.
• Injunctive relief on top.
• No shield. The chapter contains no liability protection for compliant employers. Compliance is the floor, not a safe harbor — which is the reverse of Utah or Arizona.

The Laboratory Routing Problem

This is where a program that works everywhere else quietly fails in Hawaii, because the failure happens at the vendor level rather than in your policy.

In-state testing must be at a laboratory licensed by the Hawaii Department of Health, or SAMHSA-certified and approved by the director. Specimens shipped out of state may go only to a SAMHSA-certified laboratory that is also approved by the director — and HRS 329B-4(b) states expressly that no laboratory located outside the State shall be licensed by the department. Licensed in-state laboratories must participate in and keep passing drug proficiency testing as the director determines.

So the question is not whether your national laboratory is SAMHSA-certified. It is whether that specific laboratory holds Hawaii director approval. Because a non-conforming result is void under 329B-6(d), a routing decision made by a vendor can render every Hawaii result unusable without anyone noticing until it matters.

Confirmatory drug tests must use a gas chromatograph with a mass spectrometer detector, or another reliable method approved by the director. A medical review officer appointed by the third party must receive, review and interpret laboratory results — and the Department of Health licenses MROs and may set additional MRO duties by rule, so your MRO needs Hawaii licensure too.

Cost allocation is explicit: all costs, including confirmatory testing costs, are paid by the third party. You fund every confirmation and every split.

Tell People What You Are Testing For

Before collection, the individual must receive a written statement of the specific substances to be tested for, plus a warning that over-the-counter or prescribed drugs may cause a positive result.

Then comes the binding part: HRS 329B-5(c) provides that no laboratory or on-site screening location may test for any substance not on that written statement. A generic "drugs of abuse" panel description will not do the work, and adding an analyte without updating the statement puts the result outside the chapter.

One incidental consequence worth noting: an employer intending to screen for THC in Hawaii must disclose it.

The Four-Hour Rule for Instant Tests

On-site screening is permitted, but narrowly. The device must meet FDA commercial distribution requirements or be manufactured in a facility certified to ISO 13485, and must be administered per the package insert by an operator trained by the manufacturer or its designee.

More importantly, an on-site indication cannot support any adverse action unless the employee reports within four hours to a licensed laboratory for a full test at the employer's cost. Adverse action for refusing that referral requires specified written notice first.

Four hours is an operational constraint, not a paperwork one. On a neighbor island, at a remote site, or on a night shift, it needs planning before the first non-negative rather than after.

Random Testing Is Unrestricted — In Principle

The chapter neither authorizes nor restricts random selection. Nothing limits it to safety-sensitive positions, caps a rate, or requires a particular selection method.

The constraint is logistical. Every random collection has to be paired with the pre-collection written statement, routed to a properly licensed or approved laboratory, and cleared through confirmation and MRO interpretation before it can be used. Because a non-conforming result is void, a random program that functions perfectly on the mainland can produce entirely unusable results in Hawaii purely on the strength of a vendor's routing.

Cannabis: No Statutory Protection Found

Hawaii has not legalized adult recreational use. It runs a medical program under HRS chapter 329, part IX, and the only workplace-facing provision located there is a limitation rather than a protection: the authorization for medical use does not apply to medical use of cannabis in the workplace of one's employment.

No counterpart to the employment nondiscrimination clauses found in states like Oklahoma or West Virginia appears in that part, and no cannabis employment provision was located in HRS chapter 378. Whether a Hawaii medical cannabis patient has any protection against action on a positive result is therefore a question of case law and common-law public policy rather than statute. We do not resolve it, and Hawaii counsel should be consulted before treating patient status as unprotected.

Workers' Compensation Offers No Shortcut

HRS 386-3(b) denies compensation for an injury incurred by the employee's wilful intention to injure oneself or another by actively engaging in an unprovoked non-work-related physical altercation other than in self-defense, or by the employee's intoxication. That is a causation test resting on intoxication, not a positive-result test, and the section contains no presumption triggered by a post-accident positive or by a refusal.

So a Hawaii post-accident program is evidence-gathering rather than a route to an automatic defense — and the evidence only counts if the test itself complied with chapter 329B, given the invalidation rule.

Where This Lands

Hawaii's employment base runs through tourism and hospitality, healthcare, federal defense contracting and ship repair, construction, agriculture and food production, air and ocean transportation, and retail and food service. Defense contracting and transportation bring large federally regulated populations that sit outside the chapter entirely — which makes clearly separating those populations from everyone else the first piece of Hawaii work worth doing.