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the federal law that governs almost every retirement plan

ERISA Basics

1974

Year Enacted

Foundation of benefits law

5

Fiduciary Duties

Loyalty, prudence, diversify, document, reasonable

SPD

The Doc

Summary Plan Description

five columns hold up the plan

The Fiduciary Five

Five duties hold up the plan. Knock any one out and the roof — participants' protection — collapses. Personal liability attaches to the fiduciary.

participant protectionThe ERISA Plan1Loyaltyserve the tenants2Prudencehire well3Diversifyno single bet4Follow Docsno improv5Reasonableno lootingfoundation · participants' trustremove any one column → personal liability for the fiduciary

1. Loyalty

Solely in participants' interest

2. Prudence

Care of a prudent expert

3. Diversify

Spread plan investments

4. Follow Docs

Adhere to written terms

5. Reasonable

Plan expenses must be fair

the document a participant actually reads

The Required Disclosures

Four documents, four delivery rhythms. The SPD is the one the exam loves — it has to land within 90 days, written in plain English.

erisa § 102 · plain english

Summary Plan Description

deliver within 90 days of becoming a participant

average participant must understand it

Summary Annual Report (SAR)

Annually

Financial summary for participants

Form 5500

Annually to DOL

Detailed plan financials

Summary of Material Modifications

After plan change

Notice of any change

vesting caps

For DC plans: 6 years graded OR 3 years cliff — maximum.

Exam Traps

ERISA does NOT cover government plans

Federal, state, local government plans are exempt. Church plans are exempt with narrow exceptions. The exam tests scope.

Loyalty runs to PARTICIPANTS

Not to the employer. The fiduciary acts in the participants interest, even if it conflicts with the company's convenience.

SPD must be plain English

Written so the average participant can understand. Legalese-only SPDs can be challenged. Required within 90 days of becoming a participant.

ERISA preempts most state benefit laws

But state insurance regulation survives preemption. The line is fact-specific. The exam tests the basic preemption principle.

Loyalty to participants

Fiduciary duty runs to plan participants, not the employer. The exam tests this.

Government plans excluded

ERISA covers private-sector retirement and welfare plans. Government and most church plans are out.

1
The plan is the building

Participants live in it. Their savings are pre-paid rent.

2
The fiduciary is the building manager

ERISA tells the manager how to run the building — five duties.

3
Loyalty

Run it for tenants, not the owner.

4
Prudence

Hire good vendors, not friends.

5
Diversification

Invest the building fund across many bonds, not one risky stock.

6
Follow Plan Documents + Pay Reasonable Expenses

Stick to the lease terms. Do not improvise. Do not overpay yourself.

Loyalty Prudence Diversify Document Reasonable. Five duties of the benefits landlord.
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Reviewed by Sarah L., PrepSolution Content Editor, HR
Sources verified against HRCI 2026 standards
Updated May 2026