Handling High-Volume Manufacturing Hiring and Drug-Testing Policies

Planning screening volume for plant ramp-ups and writing a drug-testing policy that respects state cannabis laws.

Short answer

How should manufacturers plan screening for hiring surges and set drug-testing policy?

Estimate screens from hires needed and the share of screened candidates who will not be hired, order in daily batches, and publish one written drug-testing policy that names the panel, when testing happens and how results are reviewed. Check state law before testing for cannabis: some states, including California and New York, restrict employment action based on off-duty cannabis use.

Plan volume, not just hires

If 300 hires are needed and 20% of screened candidates are not hired for any reason, plan for about 375 screens. Use the screening-volume calculator in the flagship planning guide.

Cannabis and drug-testing policy

California AB 2188 restricts discrimination based on off-duty cannabis use and on tests that detect non-psychoactive metabolites, with exceptions. New York Labor Law 201-D protects lawful off-duty cannabis use, with exceptions. Federal DOT-covered roles follow DOT rules regardless.

Drug-testing policy checklist

Drug-testing policy checklist
Policy elementDecision to record
PanelWhich substances; whether cannabis is included by state
TimingPost-offer, pre-start, post-accident, reasonable suspicion
ReviewMedical review officer for non-negative results
State exceptionsWhich states change the policy and how
CommunicationWhere candidates see the policy before testing

Frequently asked questions

Can we test every applicant for cannabis?

Depends on state. Some states limit cannabis testing or how results can be used. Check each hiring state.

Does high volume change FCRA duties?

No. Each candidate needs a disclosure, authorization and adverse-action steps where they apply.

How do we avoid start-date bottlenecks?

Order immediately after the offer and authorization, and stagger start dates by batch.

Related tools and guides

Sources

Published and last reviewed October 5, 2026.