Where to Post Crane Hand Signal Charts on Your Job Site (OSHA Requirements)

OSHA and ASME B30.5 don't just require crane operators and signal persons to know hand signals — they require those signals to be physically posted and accessible on the job site. Knowing where to post crane hand signal charts is a compliance requirement, not just a best practice.

Here's exactly where to post them and what the standards require.

What OSHA Says About Posting Crane Signal Charts

Under OSHA 29 CFR 1926.1419, employers must ensure that crane hand signals are available and accessible to both the crane operator and signal person during operations. ASME B30.5 further specifies that a signal chart shall be posted in the cab of mobile cranes.

Failure to comply can result in OSHA citations and fines — and more importantly, increases the risk of miscommunication during lifts.

Where to Post Crane Hand Signal Charts on a Job Site

1. Inside the Crane Cab

This is the primary ASME B30.5 requirement. A durable, legible signal chart must be posted inside the crane cab where the operator can reference it. It should be mounted in a position that doesn't obstruct the operator's sightlines. A weatherproof sticker or laminated decal adhered to the cab interior is the most common and practical solution.

2. At the Lift Staging Area

The signal person needs quick access to the chart before and during operations. Posting a chart at the staging area — on a post, barrier, or equipment — ensures the signal person can reference it without leaving the work zone.

3. Near the Load Hook-Up Zone

Riggers and ground crew working near the load benefit from having a chart posted in the hook-up area. This is especially important on sites with rotating crews or contractors who may not be familiar with your standard signals.

4. In the Job Site Safety Station or Break Area

High-visibility safety stations and break areas are ideal for larger format posters. Workers can review signals during pre-shift briefings or toolbox talks, reinforcing familiarity before they're needed in the field.

5. On the Crane Itself (Boom or Body)

For mobile cranes operating across multiple locations, a weatherproof decal mounted directly on the crane boom or body ensures the chart travels with the equipment. This is particularly useful for rental equipment or cranes shared across job sites.

What Format Should You Use?

The right format depends on the posting location:

• Crane cab: Adhesive decal or sticker — durable, space-efficient, and won't shift during operation
• Staging area / hook-up zone: Rigid sign or weatherproof poster on a stake or barrier
• Break area / safety station: Laminated poster for easy visibility and long-term use
• On the crane body or boom: Heavy-duty weatherproof decal rated for outdoor exposure

All formats should be legible from a reasonable working distance and resistant to the environmental conditions of your job site — UV, moisture, and abrasion.

How Many Charts Do You Need?

At minimum, OSHA and ASME B30.5 require one chart accessible in the crane cab. However, best practice for a typical job site is:

• 1 cab sticker (per crane)
• 1 staging area chart
• 1 safety station poster

For larger sites with multiple cranes or rotating crews, plan for one chart per crane plus additional postings at each active lift zone.