Insurance & Liens
This chapter covers the two protections every contractor must understand: the insurance you carry to shield workers and third parties from harm, and the lien and notice tools that protect you when a customer fails to pay. Workers' compensation and mechanics' liens are heavily tested, so know the deadlines and dollar figures precisely.
Key points to drill
Each teaching note below is folded. Open a heading to read that note in full — nothing in it is shortened.
Workers' Compensation Is Mandatory for Every Employer
One employee, and the clock is already running
The rule
One employee is enough: coverage has to be in force before that person’s first day, and on the day a contractor’s policy lapses the CSLB license is suspended by operation of law.
When it applies — and when it does not
- Labor Code §3700 reaches every employer except the state, and part-time, seasonal and temporary workers all count.
- Coverage may come from an admitted insurer or from a Certification of Self-Insurance issued by the Director of Industrial Relations.
- A licensee with no employees may file an exemption statement with the board instead, but not if the license carries a C-8, C-20, C-22, C-39 or D-49 classification.
- An inactive license needs neither a certificate nor an exemption while it stays inactive.
Worked contrast
| Employer hires one part-time helper | Coverage must already be secured (Lab. Code §3700) |
| Licensee with no employees, no listed classification | May file an exemption statement instead (B&P §7125(b)) |
| Licensee with no employees holding C-8, C-20, C-22, C-39 or D-49 | No exemption; the registrar removes that classification if no certificate is filed (B&P §7125(b)(2), (f), (g)) |
| Coverage lapses on an active license | Suspension takes effect on the lapse date itself (B&P §7125.2(a)(1)) |
Common mix-ups
- The suspension is automatic on the lapse date; it does not wait for a hearing, a complaint or a claim.
- The 90-day figure that people attach to this rule is the claim-denial presumption in the workers’ comp system, not a grace period to keep working uninsured.
- C-10 is often named as a classification that can never take the exemption; the classifications the statute actually lists are C-8, C-20, C-22, C-39 and D-49.
Source: Labor Code §3700 · Bus. & Prof. Code §7125(b) · Bus. & Prof. Code §7125.2(a)
Penalties for Operating Without Coverage
What being uninsured actually costs
The rule
Being unlawfully uninsured is a misdemeanor with a fine floor of $10,000, and the penalty assessments on top of it run to $10,000 per employee once an injured worker’s claim is found compensable, capped at $100,000.
When it applies — and when it does not
- The crime reaches an employer who knew, or from experience should reasonably have known, of the duty to secure payment of compensation.
- The §3722(a) assessment is issued together with the stop order, before any injury has happened.
- The $100,000 ceiling in §3722(f) covers the assessments in this section but does not limit the §3722(b) assessment for a period of being uninsured.
Worked contrast
| Criminal charge (Lab. Code §3700.5) | Up to one year in county jail, or a fine of up to double the avoided premium but not less than $10,000, or both |
| Stop order served (Lab. Code §3722(a)) | $1,500 per employee employed when the order is issued and served |
| Injury claim found compensable (Lab. Code §3722(d)(2)) | $10,000 per employee employed on the date of injury, within the $100,000 ceiling in §3722(f) |
| Employee notice not posted (Lab. Code §6431) | Civil penalty of up to $12,471 per violation, raised each January 1 by the CPI |
Common mix-ups
- $7,000 was the ceiling in Labor Code §6431 before the annual CPI adjustments began in 2018; the figure printed in the statute today is $12,471 and it moves every January.
- Labor Code §3550 creates the posting duty and makes failure to post a misdemeanor and prima facie evidence of noninsurance, but it names no dollar amount — the money is in §6431.
- $100,000 is a ceiling on the total of the §3722 assessments, not the penalty for a single employee.
Source: Labor Code §3700.5(a) · Labor Code §3722(a), (d)(2), (f) · Labor Code §3550(b) · Labor Code §6431(a)
No-Fault Coverage and the Exclusive Remedy
The two halves of the same bargain
The rule
Liability for workers’ compensation exists “without regard to negligence,” and in exchange the compensation claim is the employee’s sole and exclusive remedy against the employer.
When it applies — and when it does not
- Both employer and employee must be subject to the division, and the injury must arise out of and in the course of the employment.
- Section 3600(a) withholds benefits where the injury came from the employee’s intoxication, was intentionally self-inflicted, or arose from an altercation the employee started.
- Section 3602(b) opens a civil action for a willful physical assault by the employer, fraudulent concealment of the injury, or a defective product the employer made and sold.
- If the employer never secured payment of compensation, §3706 lets the injured worker sue at law as if the division did not apply.
Worked contrast
| The employee caused the accident | Benefits still paid — liability exists without regard to negligence (§3600(a)) |
| The employer was careless | Benefits paid, and compensation is the sole and exclusive remedy (§3602(a)) |
| The employer willfully assaulted the employee | Civil action at law is allowed (§3602(b)(1)) |
| The employer never secured coverage | The worker may sue for damages as if the division did not apply (§3706) |
Common mix-ups
- No-fault is about who caused the injury, not about whether the worker was blameless — a partly at-fault worker still collects.
- The exclusive remedy runs against the employer. It does not bar a claim against a negligent third party.
- Benefits are the employer’s liability, paid through its carrier or self-insurance, not a payment from the state.
Source: Labor Code §3600(a) · Labor Code §3602(a) · Labor Code §3706
The Workers' Comp Claim Process
One working day, and the first $10,000
The rule
The employer has one working day to hand the worker the DWC-1 claim form, and one working day after that form is filed to authorize treatment, with liability capped at $10,000 until the claim is accepted or rejected.
When it applies — and when it does not
- The form duty is triggered by an injury that causes lost time beyond the shift or medical treatment beyond first aid.
- The $10,000 is a ceiling on the employer’s liability while the claim is pending, not a cap on the worker’s medical benefits.
- Treatment provided under §5402(c) does not give rise to a presumption that the employer is liable.
- If liability is not rejected within 90 days after the claim form is filed, the injury is presumed compensable.
Worked contrast
| Give the worker the claim form | Within one working day of notice or knowledge of the injury (§5401(a)) |
| Authorize treatment after the form is filed | Within one working day; liability limited to $10,000 until accepted or rejected (§5402(c)) |
| Reject liability, or the injury is presumed compensable | 90 days after the claim form is filed (§5402(b)(1)) |
| Presumptive injuries under §§3212–3213.2 | 75 days instead of 90 (§5402(b)(2)) |
Common mix-ups
- The presumption clock is 90 days, and 75 days for the listed presumptive injuries. There is no 30-day presumption here.
- The $10,000 is spent before anyone decides the claim, which is the whole point of it — it is not what the worker gets after the claim is accepted.
- One working day is counted from notice of the injury for the form, and from filing of the form for the treatment authorization.
Source: Labor Code §5401(a) · Labor Code §5402(b), (c) · DWC frequently asked questions (Department of Industrial Relations)
Commercial General Liability Insurance
Which policy answers which claim
The rule
Liability insurance answers for injury to other people and damage to other people’s property, and by statute it does not include workers’ compensation or vehicle insurance, so the claim goes to whichever policy matches who was hurt and what was damaged.
When it applies — and when it does not
- Your own employee is hurt on the job: that is workers’ compensation, which Ins. Code §108(a) expressly excludes from liability insurance.
- A vehicle used in the business is involved: that is the commercial auto policy, also excluded from the §108(a) definition of liability insurance.
- The thing damaged is the unfinished project itself: that is builder’s risk, a property cover on the work, not a liability cover.
- The loss is purely financial and comes from a design or advice error: that is errors and omissions, which a standard CGL policy usually excludes.
Worked contrast
| A passerby or the owner is injured by the work | Commercial general liability |
| An employee crashes the company truck into someone | Commercial auto — Ins. Code §108(a) keeps vehicle insurance out of liability insurance |
| Your own employee is injured | Workers’ compensation — also excluded from liability insurance by §108(a) |
| The half-built structure burns, is stolen from, or is vandalized | Builder’s risk, until the project is finished |
Common mix-ups
- The license bond is not the contractor’s insurance. It protects the customer, and the surety collects back from the contractor what it pays out.
- Builder’s risk is property coverage on the work itself. It is not the policy that answers a lawsuit brought by an injured third party.
- A personal auto policy generally excludes vehicles used for business, so the company truck needs the commercial auto policy.
Source: Insurance Code §108(a) · Labor Code §3600(a)
Mechanics' Liens and the Preliminary Notice
The lien for plans that never got built
The rule
A design professional who is not paid may record a lien on the site even though the work of improvement never started, but only if a building permit or other governmental approval was obtained using those services.
When it applies — and when it does not
- “Design professional” under §8014 means a licensed architect, licensed landscape architect, registered professional engineer, or licensed land surveyor.
- The services must have been furnished under a written contract with the landowner.
- The landowner who contracted for the services must still own the site when the claim of lien is recorded.
- The lien is for the contract fee or the reasonable value of the services, whichever is less, reduced by any deposit or prior payment.
Worked contrast
| Plans drawn, permit obtained, nothing ever built | Design professionals lien, Civil Code Chapter 3 (§§8300–8319) |
| Labor, services, equipment or materials actually furnished to the site | Mechanics lien, Civil Code Chapter 4 (§§8400–8494) |
| Design services furnished and the work of improvement did commence | Preliminary notice within 20 days of commencement preserves the ordinary claim (§8204(b)) |
| No building permit or governmental approval obtained | No claim of lien may be recorded under the chapter at all (§8302(c)) |
Common mix-ups
- Civil Code §8484 is the list of allegations a petition for a release order must contain. It is not the design professionals lien.
- This lien exists precisely because nothing was built, so there is no improvement for an ordinary mechanics lien to attach to.
- A permit or other governmental approval is a condition of the lien, not a formality — without one the chapter creates no lien.
Source: Civil Code §8300 · Civil Code §8302 · Civil Code §8014 · Civil Code §8484
Lien Deadlines and Recording
The day counts on a private job
The rule
On a private job the lien window is 90 days after completion of the work of improvement, cut short to 60 days for the direct contractor and 30 days for every other claimant once the owner records a notice of completion or cessation.
When it applies — and when it does not
- Whichever of the two dates comes earlier controls — both §8412 and §8414 are written as “before the earlier of the following.”
- A subcontractor or supplier must first have served the preliminary notice, due not later than 20 days after it first furnished work (§8204(a)).
- The shortened 30-day and 60-day windows start only if a notice of completion or cessation is actually recorded.
- The direct contractor may not record until after it has completed its direct contract (§8412).
Worked contrast
| Direct contractor, no notice of completion recorded | 90 days after completion of the work of improvement (§8412(a)) |
| Direct contractor, owner recorded a notice of completion or cessation | 60 days after that recording (§8412(b)) |
| Any other claimant, owner recorded a notice of completion or cessation | 30 days after that recording (§8414(b)(2)) |
| Owner’s retention owed to the direct contractor | 45 days after completion of the work of improvement — a payment clock, not a lien clock (§8812(a)) |
Common mix-ups
- The 60-day figure lives in §8412 and the 30-day figure in §8414. Citing §8414 for the direct contractor’s 60 days points at the wrong section.
- Civil Code §8800 is the 30-day progress-payment duty and §8812 the 45-day retention duty. Neither is a deadline to record a lien.
- 90 days shows up twice on the same job: as the outer window to record the lien, and again under §8460 as the window to sue after it is recorded.
Source: Civil Code §8412 · Civil Code §8414 · Civil Code §8204(a) · Civil Code §8812(a) · Civil Code §8800(a)
Enforcing, Releasing, and Bonding Around a Lien
Both bonds are 125 percent
The rule
Both bonds in this area are set at 125 percent: a lien release bond of 125 percent of the claim of lien takes the property out from under the lien, and a bond of 125 percent of the claim makes a stop payment notice binding on a construction lender.
When it applies — and when it does not
- The release bond must be executed by an admitted surety insurer and may be recorded before or after an action to enforce the lien is started.
- On recordation the real property is released from the claim of lien, and the claimant pursues the bond instead of the land.
- A recorded lien still has to be enforced by filing suit within 90 days of recordation, or it expires and is unenforceable.
- The percentage is measured against the claim — the claim of lien, or the amount allocated in it to the property released — never against the project value.
Worked contrast
| Lien release bond (§8424(b)) | 125% of the claim of lien, or of the amount allocated to the property released |
| Bonded stop payment notice to a construction lender (§8532) | 125% of the amount of the claim |
| Suit to enforce a recorded lien (§8460(a)) | 90 days after recordation of the claim of lien, or the lien expires |
| Suit on a recorded lien release bond (§8424(d)) | Six months after notice of the bond is given to the claimant |
Common mix-ups
- 125 percent is the figure for both bonds. 100 percent, 150 percent and “the lien plus interest” are not the rule for either of them.
- Recording a release bond does not extend the §8460 90-day clock on the lien. It moves the claim onto the bond, which carries its own six-month limit under §8424(d).
- Civil Code §8506 says how a stop payment notice must be given, and to whom. The 125 percent bond that obligates a lender is §8532.
Source: Civil Code §8424(b), (d) · Civil Code §8532 · Civil Code §8460(a) · Civil Code §8506
One section of the chapter
Insurance and Liens
The chapter opens here, in the same statute-checked text as the CSLB Law & Business eBook. 12% of the exam comes from this chapter; this is one of its 18 sections, whole.
Section 3 of 18
Part A — Workers' compensation
Every employer must carry it, and one employee is enough
California law is blunt: every employer must secure the payment of workers' compensation for its employees, either by buying a policy from an insurer (including the State Compensation Insurance Fund) or by qualifying with the state to self-insure (Lab. Code §3700). There is no headcount threshold to cross first — a single employee triggers the duty. The idea that a business needs some minimum number of workers before coverage kicks in is a common and costly misconception.
Two features of the system define it. It is no-fault: liability attaches "without regard to negligence," so an injured worker collects medical care, disability payments, and death benefits without having to prove the employer did anything wrong (Lab. Code §3600). And in exchange, workers' comp is generally the employee's exclusive remedy — the worker takes the guaranteed benefits and gives up the right to sue the employer in civil court for the injury (Lab. Code §3602). That trade — guaranteed no-fault benefits for the employee, immunity from lawsuits for the employer — is the entire logic of the system, and the exam tests it directly. (The bar is not absolute: §3602 itself preserves a civil suit in a narrow set of cases — the employer's willful physical assault, fraudulent concealment of a known injury, and injury from a defective product the employer made and sold to a third party — and, as the next section explains, the exclusive-remedy shield disappears entirely when the employer is illegally uninsured.)
California example. A small drywall contractor in Modesto hires his first helper — one part-time employee. From that first hire, the contractor must have a workers' comp policy in force. If the helper hurts his back on the job, he files a comp claim and is paid regardless of whose fault the injury was; he does not have to prove the contractor was negligent, and ordinarily he cannot sue the contractor in court instead.
Where this page ends
The rest of this chapter is in the eBook
That was one section of Insurance and Liens, start to finish — nothing of it was cut. Covering this knowledge area, 12% of the exam, means the whole chapter: roughly 16,100 more words under the headings below, and the whole chapter is what the $24.99 eBook has.
- Introduction
- Learning objectives
- Every employer must carry it, and one employee is enoughon this page
- The workers'-comp certificate as a licensing condition — and the phase-out you must know
- What happens if you go uninsured
- Who counts as an "employee"
- Matching the policy to the risk
- Surety bonds versus insurance — a structural difference
- The LLC liability-insurance requirement
- The mechanics lien — the core private-work remedy
- The preliminary (20-day) notice — the gateway to every remedy
- Deadlines to record a mechanics lien — 90 / 60 / 30
- The claim of lien itself — earliest time, contents, and service (§§8414, 8416)
- The separate deadline to foreclose — another 90 days
- The stop payment notice — reaching the money, not the property
- Payment bond claims on private work
- Prompt payment and retention release
- The paid-up homeowner can still be forced to pay twice
- Liens and other remedies
- Lien waivers and releases — the four statutory forms
- Prompt payment of progress payments — day-counts and penalties
- Retention release — 45 / 10 on private work, 60 / 7 on public work
- Completion, notice of completion, and notice of cessation — how the owner shrinks the lien window
- Notice of nonresponsibility — the non-contracting owner's shield
…and 12 more sections — then this chapter’s “Key numbers & deadlines” sheet, its summary and its sources.
Frequently asked questions
How many employees must a California business have before workers' compensation coverage is required?+
Every employer in California must secure workers' compensation coverage for its employees, either by buying a policy or qualifying to self-insure. Workers' comp pays for job-related injuries and illnesses (medical care, disability, and death benefits) on a no-fault basis, and in exchange it is generally the employee's exclusive remedy against the employer. There is no minimum number of employees that triggers the duty — having any employee triggers it.
As of 2026, which contractor classifications can no longer claim the no-employee workers'-comp exemption?+
A contractor must keep a current Certificate of Workers' Compensation Insurance (or a valid exemption) on file with CSLB as a condition of holding a license; if it lapses, the license is automatically suspended. California is PHASING OUT the old 'no employees = no coverage' exemption under SB 216, but SB 1455 (2024) postponed the all-classifications deadline from 2026 to January 1, 2028. As of 2026, only certain higher-risk classifications — C-8 (concrete), C-20 (HVAC), C-22 (asbestos), C-39 (roofing) and D-49/C-61 (tree service) — can no longer claim the no-employee exemption; all OTHER classifications keep it until 1/1/2028, when it ends for everyone.
What remedies does an injured worker have against an uninsured employer?+
An employer who fails to carry required workers' compensation faces severe consequences: the injured worker can both sue the employer in civil court (where the employer loses key defenses) and claim benefits from the state Uninsured Employers Benefit Trust Fund, and the state can issue stop-work orders and substantial penalties. Being uninsured strips away the exclusive-remedy protection that workers' comp normally gives the employer.
For workers' compensation, how is an unlicensed worker hired to perform licensed work generally treated?+
Workers' comp coverage turns on who counts as an employee. The law broadly includes most workers and even presumes unlicensed workers hired to do licensed work are employees, while carving out narrow categories (certain corporate officers/directors who own the business, some working family members, and true independent contractors under the ABC test) who may be excluded or elect coverage. Misjudging status can leave a hurt worker uncovered and the employer exposed.
Which insurance covers the structure being built against loss during construction?+
Contractors carry several other insurances. Commercial general liability (CGL) covers third-party bodily injury and property damage claims. Builder's risk (course-of-construction) insurance covers the project itself against loss while under construction. Commercial property insurance covers the contractor's own buildings, tools, and equipment, and commercial auto covers vehicles. Each addresses a different risk; none of them substitute for workers' comp, which covers employee injuries.
Educational summary, not legal advice — always confirm the current law with the official source (leginfo / CSLB).
Keep going: the full CSLB Law & Business guide covers every section of the exam. CSLB Law & Business — Complete Study Guide (2026) — PDF + EPUB, $24.99 · 14-day refund →
Want the 4-page colour cheat sheet to print for exam week? CSLB Law & Business cheat sheet PDF — $9.99 →
Last updated: September 2026

Only in the book: 170 practice questions written for the book — none of them in the free bank on this site. Practice here stays free.