Class Code 5212
Concrete Pumping
Class Code 5212 covers concrete pumping operations in California — work that moves concrete from trucks to forms using boom pumps, line pumps and associated hoses and equipment. The WCIRB-approved pure premium rate for this classification on September 1, 2026 is $6.620 per $100 of payroll, which reflects expected claim costs for these higher-hazard tasks.
What Class Code 5212 Covers
This classification applies to businesses that operate boom-mounted concrete pumps, line pumps (trailer- or skid-mounted), and the crews that set up, operate, maintain and clean pumping equipment. It includes pump truck operators, hosemen who place and handle delivery lines, pump truck drivers who transport and position equipment, mechanics who service pumps and hydraulic systems, and laborers who secure outriggers, clean chutes, and flush lines. Covered operations include hooking up pump hoses, operating remote or manual controls, monitoring concrete flow and pressure, cleaning and flushing lines with water and air, pressure testing, and maintaining pumping equipment on the jobsite. It also includes related tasks such as rigging and placing boom sections, traffic control for positioned pump trucks, and confined-space pumping operations when they are part of the pumping activity.
Who It Applies To
- Boom pump operators who control articulated placing booms
- Line pump operators and hosemen who hand-guided delivery lines
- Pump truck drivers who transport and position pumping units
- Service mechanics who maintain hydraulic systems, pumps and hoses
- Laborers who set outriggers, clean lines and assist with setup
Common Job Duties
- Positioning and stabilizing pump trucks using outriggers and cribbing
- Connecting, routing and securing placing hoses and boom sections
- Operating pump controls and remote systems to regulate flow and pressure
- Monitoring concrete mix and pressure to avoid blockages and hose whip
- Flushing, cleaning and pressure testing lines after pours
- Performing routine maintenance on hydraulics, seals, and hose couplings
- Setting traffic control and site protection while moving or placing pumps
Common Injury Risks
Understanding the $6.620 Rate
The pure premium rate of $6.620 per $100 of payroll represents the WCIRB's estimate of expected claim costs for every $100 of payroll in this class before insurer expenses and profit. Insurers apply this rate to your payroll to produce a base premium; your final premium will be adjusted by your experience modification, payroll audit accuracy, policy-specific credits or debits, deductible or retrospective programs, and any group-rating or PEO arrangements.
Cal/OSHA Compliance Requirements
Concrete pumping operations must comply with Cal/OSHA Construction Safety Orders (Title 8) covering machine guarding, equipment maintenance, pressure systems, and fall protection when working at heights. Employers should follow the state silica controls and respiratory protection requirements for activities that generate respirable crystalline silica, maintain hose and coupling inspection programs to prevent hose whip, implement lockout/tagout for pump maintenance, and ensure competent-person oversight for trenching/excavation and boom placement.
How Key HR Helps Employers Under Class Code 5212
A PEO like Key HR helps employers in Class Code 5212 by bundling payroll, claims management and safety services to reduce workers' comp costs. Key HR can provide targeted safety training (hose whip prevention, pump maintenance, silica exposure controls), on-the-ground safety audits, managed medical and claims handling to control reserves, and coordination of return-to-work programs to improve experience modifier and lower future premiums.
Get a QuoteFrequently Asked Questions
Does handling both boom pumps and line pumps fall under Class Code 5212?
Yes. Class Code 5212 covers the operation, setup, maintenance and cleaning of both boom-mounted pumps and line pumps, including the crews who handle hoses, operate controls and service the equipment.
How can we lower our workers' comp premium for concrete pumping?
Lower premiums come from reducing claims and payroll exposure: enforce hose inspection and maintenance, provide hands-on training for hose whip and pressure hazards, use engineering controls to limit silica exposure, maintain accurate class-code payroll reporting, and use PEO or group-rating options to access better loss control and claims management.
What site controls reduce the biggest hazards when pumping concrete?
Key controls include securing outriggers and cribbing, establishing clear zones to prevent struck-by injuries, using whip restraints and properly rated couplings, conducting pre-pour pressure checks, implementing respiratory protection and dust controls for silica, and ensuring a competent person oversees setup and hose routing.
Quick Facts
- Class Code
- 5212
- Classification
- Concrete Pumping
- Pure Premium Rate
- $6.620 / $100 payroll
- Effective Date
- September 1, 2026
- Source
- WCIRB Approved Filing
Manage Workers' Comp Through a PEO
Key HR provides pay-as-you-go workers' comp for California employers — no large deposits, no audits, better rates.
Get a Quoteor call (800) 922-4133Ready to Simplify Workers' Comp for Class Code 5212?
Key HR provides California employers with pay-as-you-go workers' comp, HR compliance support, and payroll — all through one PEO partnership.