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Crane Certification & Permits - Washington (DOSH)

This talk follows Washington (WAC) rules · See the federal OSHA version →

Updated 2026-09-30

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Most places ask one question about a crane lift: is the operator certified? Washington asks four. Is the crane itself certified this year, with the certificate of operation posted in the cab? Does the operator have a certificate and the documented hours for this type of crane, and have they passed a substance abuse test? Is the signal person's qualification less than five years old? And if it's a tower crane, does the prime contractor hold the permit that has been required since January 1, 2026? This Washington Crane Certification & Permits Toolbox Talk walks through those four checks.

Where the boundary of this talk sits#

This talk covers Washington's paperwork layer for construction cranes: annual crane certification, operator qualification, signal person qualification, and tower crane permits. Rigging, load charts, power line clearance, and the lift itself belong to their own talks.

The anchor#

Here is the distinction that carries this whole talk: in Washington the crane, the operator, the signal person, and the tower crane project each carry their own proof — a certified crane inspector must inspect a construction crane at least annually and after significant modification or repair, with a valid certificate of operation posted in the operator's cab or station; the operator needs a certificate for that type of crane plus documented hours from the state table and a passed substance abuse test; a signal person's qualification cannot run longer than five years; and since January 1, 2026, the prime contractor must hold a tower crane permit before any tower crane operation, assembly, disassembly, or reconfiguration — so a certified operator in an uncertified crane, or a correct lift with a lapsed signal qualification, is still out of compliance.

Check 1: the crane's certificate of operation#

RCW 49.17.420 sets up the construction crane certification program. Cranes used in construction must be inspected by a certified crane inspector at least annually, and after any significant modification or significant repairs. The inspector must not attest that a crane meets safety and health standards until any deficiencies are corrected and the correction is verified.

After inspection, the crane gets a temporary certificate from the inspector, and then a final certificate from the department. A valid temporary or final certificate of operation must be posted in the operator's cab or station. The certificate is valid for one year from the effective date of the temporary certificate. Tower cranes must also be inspected by a certified crane inspector before and after every assembly, disassembly, and reconfiguration.

Maritime cranes regulated by the department are outside this section.

Check 2: the operator#

RCW 49.17.430 says an employer or contractor must not permit anyone to operate a crane unless they are a qualified crane operator. That means:

  • a valid crane operator certificate for the type of crane, issued by a testing organization accredited by a nationally recognized accrediting agency;
  • up to 2,000 hours of documented crane operator experience, at levels the department sets; and
  • a passed substance abuse test conducted by a recognized laboratory service.

WAC 296-155-53300, Table 3, sets the hours. A few examples:

  • lattice boom crawler or truck cranes, 300 tons and above: 1,000 hours operating plus 1,000 hours crane-related;
  • large telescopic boom cranes (swing cab) over 130 tons: 750 plus 750; over 40 to 130 tons: 250 plus 250;
  • small telescopic boom cranes (fixed cab) 15 tons and above: 40 plus 40;
  • hammerhead and luffing tower cranes: 500 plus 500; self-erecting tower cranes: 50 plus 50;
  • articulating boom cranes: 20 plus 20.

A note to the table says additional actual operating experience may count toward crane-related experience. The employer must make the operator's qualification documentation available at the job site while the operator works for that employer.

An apprentice or trainee may operate only under the direct and continuous supervision of a qualified operator, who for most cranes must be in direct line of sight of the trainee and communicate verbally or by hand signals, and for tower cranes must be in direct communication with the trainee. Under RCW 49.17.430(4), the department may recognize crane operator certification from another state or territory as equivalent to Washington's requirements.

Check 3: the signal person#

WAC 296-155-53302 requires signal persons to be qualified by a third-party qualified evaluator or by the employer's own qualified evaluator. An employer's qualification is not portable; another employer cannot use it. The documentation must be available at the site and must list each type of signaling the person is qualified for.

Washington adds a clock. A signal person qualification cannot exceed five years and must be renewed every five years, at minimum with a documented written or oral exam.

Check 4: the tower crane permit#

RCW 49.17.435 directs the department to set up a permit for any work involving the operation, assembly, disassembly, or reconfiguration of a tower crane. WAC 296-155-53911 puts it into effect: beginning January 1, 2026, before performing or allowing any of that work, the prime contractor must obtain a permit, and must possess it at all times a tower crane is on the job site. The application must be submitted at least 20 working days before the planned assembly date. Under the statute, a complete application names the assembly/disassembly director and includes the prime contractor's certification that all assembly, disassembly, and reconfigurations will be performed with a technical representative. Before issuing the permit, the department holds a safety permit conference.

Under the statute, a permit can be suspended or revoked for failing to comply with safety standards, failing to notify the department in advance of crane work, failing to have the manufacturer's technical representative present, or failing to immediately correct structural integrity deficiencies.

Washington versus federal#

Federal rules require an annual inspection by a qualified person under 29 CFR 1926.1412(f), operator certification, and signal person qualification under 29 CFR 1926.1428. The federal rule sets no renewal period for signal persons; it requires retraining only when the person's performance shows they no longer meet the requirements. Federal rules have no state certificate of operation, no hour table, no substance abuse test requirement, and no tower crane permit. Washington requires all of them.

Where the duty sits#

RCW 49.17.420 sets annual crane certification and the posted certificate of operation. RCW 49.17.430 and WAC 296-155-53300 set operator certification, the hours table, substance abuse testing, and site documentation. WAC 296-155-53302 sets signal person qualification and the five-year limit. RCW 49.17.435 and WAC 296-155-53911 set the tower crane permit. For contrast, federal 29 CFR 1926.1412(f) and 1926.1428.

What can go wrong?#

  • The crane arrives with last year's certificate of operation in the cab.
  • A certified operator has never logged the hours for the crane size on site.
  • The signal person's qualification card is six years old.
  • Tower crane assembly is scheduled before the permit application's 20 working days are up.

How do we manage this properly?#

  • Look in the cab — a current certificate of operation, posted.
  • Check the operator's file on site — certificate, hours for this crane type, substance test.
  • Check the signal person's date — less than five years, and qualified for the signals in use.
  • Tower crane? Permit first — applied for 20 working days ahead, on site the whole time.
  • Re-inspect after major repair or modification — before the crane goes back to work.

Before you start#

Before the first lift, confirm the crane's certificate of operation is current and posted, the operator's documents are on site, and the signal person's qualification hasn't expired.

Talk it over#

  • When does the certificate in this crane's cab expire?
  • Does our operator have the hours for this crane's category?
  • Who is our qualified signal person today, and when were they last qualified?

The bottom line#

Washington certifies the crane, not just the operator. A certified crane inspector inspects construction cranes at least annually and after significant repair or modification, and a valid certificate of operation is posted in the cab. Operators need a certificate for the crane type, documented hours from the state table, and a passed substance abuse test. Signal person qualifications last no more than five years. Since January 1, 2026, tower crane work needs a permit held by the prime contractor.

Frequently asked questions about Washington crane rules#

Does Washington require cranes to be certified every year?

Yes. Under RCW 49.17.420, construction cranes must be inspected by a certified crane inspector at least annually and after any significant modification or significant repairs, and a valid temporary or final certificate of operation must be posted in the operator's cab or station. The certificate is valid for one year.

Download the Washington crane certification and permits toolbox talk PDF#

Download this Washington Crane Certification & Permits Toolbox Talk as a printable PDF in English and Spanish, and use it before the crane's first lift on a new job.

Related toolbox talks#

Sources#

Written by FieldSafetyTalk's safety professional — a CSP, ASP, CHST and OSHA Authorized Outreach Trainer with 14+ years of international construction safety experience across federal, heavy civil, and industrial projects.

Hazards covered

cranesstruck by
By Mustafa Tok, CSP, ASP, CHST

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