Embed a rules accurate Hours-of-Service compliance engine into your platform without building or maintaining regulatory logic internally.

HOS Codex processes driver logs and returns compliance status, violations, warnings, short-haul eligibility, available clocks, historical compliance details, and support for multiple rulesets through a simple API.

HOS compliance rules engine API

Built for platforms that embed compliance

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ELD Vendors

Fleet Management
Systems

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Safety and
Compliance Tools

OEM / Telematics
Platforms

Features

 

Supported Rulesets

U.S. Interstate - Property

U.S. Interstate - Passenger

U.S. property and passenger support both 7 and 8 day cycles with 34 hour restarts and driver start of day

Canada - South 60 (in development)

Canada - North 60 (planned)

U.S. Intrastate California (planned)

U.S. Intrastate Texas (planned)

Outcomes

Explicit violations

Violation windows

Remaining available time takes everything under consideration

Next violation prediction

Clock recovery information

Clock state evaluation

Work shift, day, and ruleset timelines

Deterministic evaluations for identical inputs

Exemptions and Exceptions

Short Haul can run under 3 modes, strict, monitor, or none

Adverse driving conditions

16-hour exemption

Split sleeper berth provision

Oilfield exemption (next release)

Driver start of day and cycle handling

Qualities

Designed for dispatchers, ELDs, audit review, and post-incident analysis

Consistent rule interpretation across platforms

Built to evolve with regulatory changes

Predictable, rule-based outcomes

Audit-friendly evaluations

No black-box decisions

Compliance consulting as needed

Contact / Request API Key

Request early access to HOS Codex to receive a test API key and evaluate the compliance engine with your own data.

HOS Codex is currently available to integration teams building ELD and dispatch systems. Early access is designed for teams actively evaluating how compliance logic fits into their platform.