DOT


Partnering with On Site Safety Services ensures your DOT drug and alcohol testing program is fully compliant with FMCSA regulations. Our comprehensive program options include random, pre-employment, post-accident, and reasonable suspicion testing, supported by collection sites conveniently located near your business. We also offer DOT-compliant written policies, medical review officer services, and federal chain of custody management, ensuring a thorough and compliant testing program.

On Site Safety Services, Inc. is a proud member of

Colusa County - We're Bringing Local Back!

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