What gets tested · Type I
The EPA 608 Type I section: small appliances
EPA 608 Type I certification covers small appliances, the factory-sealed refrigerators, room air conditioners and similar units defined in 40 CFR 82.152, and you earn it by passing the Core section plus the Type I section. The section is less about tools than about one boundary: which equipment counts as small, and what has to happen to its refrigerant before it leaves service.
What the Type I section covers
- Small appliance
- A product fully manufactured, charged and hermetically sealed in a factory, under the charge limit set in 40 CFR 82.152: household refrigerators and freezers, room air conditioners, packaged terminal heat pumps, vending machines, drinking-water coolers (eCFR as of October 5, 2026). The limit and the borderline cases are on what counts as a small appliance.
- Recovery requirements
- A percentage of the charge or a 4 inHg vacuum, set by the recovery equipment's manufacture date and the compressor's condition (40 CFR 82.156(b), eCFR as of October 5, 2026). How a job is actually recovered is on small-appliance recovery.
- Recovery techniques
- Passive, system-dependent methods, access fittings on a sealed circuit, and what to do when the compressor won't run, all listed by name for Type I (EPA test topics, checked October 7, 2026).
- Safe disposal
- The chain in 40 CFR 82.155: who removes the refrigerant before the unit is scrapped, and what the last person in the chain keeps on file.
- Safety
- Toxic decomposition products when refrigerant meets high heat, plus the cylinder rules shared with Core, which sit in refrigerant safety.
Where the Type I line actually falls
Type I is often read as covering any household cooling equipment. The definition is narrower. A residential split-system air conditioner is charged in the field after installation, so it fails the factory-charged test, and refrigerant work on it takes the Type II section. A window unit with the same refrigerant, sealed at the factory, stays in Type I.
The second misreading runs the other way: treating the charge limit as the whole test. All three conditions apply together, factory-built, factory-charged and hermetically sealed. A unit that misses any one of them isn't a small appliance, however small its charge looks on the nameplate.
The trigger for needing a certificate at all is the refrigerant circuit, not the job title. Attaching hoses and gauges, adding or removing refrigerant, or cutting into the lines is technician work; painting the cabinet or rewiring a circuit outside the refrigerant loop isn't (40 CFR 82.152, eCFR as of October 5, 2026). An apprentice may do the work without a certificate only while closely and continually supervised by a certified technician (40 CFR 82.161(a)(2), eCFR as of October 5, 2026).
What Type I doesn't ask is just as useful to know. Evacuation tables in inches of vacuum, leak-rate thresholds and chiller procedures belong to Types II and III. For Type I the test topics name four areas: the small-appliance definition, recovery requirements, recovery techniques and safety (EPA test topics, checked October 7, 2026). Study those and the Core material, and you've covered this certificate.
How Type I can be earned
Type I test formats
| Format | Sections | Passing score | Counts toward Universal |
|---|---|---|---|
| Proctored, closed-book | Core + Type I | 70% | Yes |
| Mail-in, open-book (Type-I-only programs) | Core + Type I | 84% | No |
Sources: 40 CFR 82, Appendix D (a) and (e), eCFR as of October 5, 2026; EPA certification requirements, checked October 7, 2026. Fees, time limits and retake terms are set by each program.
Who, what, and how it's scrapped
Before choosing an answer, decide whether the stem is about servicing the unit or disposing of it; the rules split there.
0 right · 0 of 17 answered
Type I Certification is required for individuals who:
Why each option is right or wrong
Answer: C. perform maintenance, service, or repair operations on small refrigerant appliances.
- AMaking refrigerant is a manufacturing activity; technician certification covers people who handle refrigerant in appliances.
- BDisposal of small appliances does not require technician certification, and working at a recycling facility alone is not service work.
- CCorrect: Type I covers technicians who maintain, service or repair small appliances, where the work could release refrigerant.
- DDesigning HVAC systems never opens a refrigerant circuit, so it needs no 608 certification.
Individuals who manage refrigerant while performing maintenance, service, or repair of small appliances need to be certified as a Type I Technician or Universal Technician. This does not include those working with motor vehicle air conditioning (MVAC).
What would be the minimum certification requirement for a technician to recover refrigerant from a portable dehumidifier?
Why each option is right or wrong
Answer: D. Type I certification
- AType II covers high- and medium-pressure equipment that is not a small appliance; it is more than a portable dehumidifier needs.
- BType III covers low-pressure appliances such as centrifugal chillers, not small hermetic units.
- CRecovering refrigerant during service is technician work, so certification is required.
- DCorrect: a portable dehumidifier is a factory-sealed unit holding 5 lb or less, so it is a small appliance and Type I is the minimum (Universal also covers it).
A Type I certification is required for technicians recovering refrigerant from small appliances, such as portable dehumidifiers, that contain 5 pounds of refrigerant or less.
Which task requires the technician to hold a Section 608 certification?
Why each option is right or wrong
Answer: C. Replacing a defective internal evaporator coil
- ACleaning fans and fins does not open the refrigerant circuit, so it needs no certification.
- BSwapping an external contactor is electrical work that leaves the refrigerant circuit sealed.
- CCorrect: replacing an evaporator coil means opening the refrigerant circuit, which only a certified technician may do.
- DRewiring an external control circuit does not touch the refrigerant circuit.
Replacing an evaporator coil requires opening the refrigerant circuit, which mandates Section 608 certification. Routine maintenance of external components does not breach the hermetic seal.
In accordance with the Clean Air Act, technicians must be certified before they are allowed to handle refrigerants in which context?
Why each option is right or wrong
Answer: D. During installation of HVAC systems
- AWrong: cleaning coils or cabinets doesn't open the refrigerant circuit, so no Section 608 certification is needed.
- BWrong: design work never touches refrigerant, so certification doesn't apply.
- CWrong: teaching about systems involves no handling of refrigerant.
- DCorrect: installing a system can mean connecting lines and adding or releasing refrigerant, which is work only a certified technician may do.
Technicians must be certified when their work on HVAC systems, such as installation, service or repair, can release refrigerant. Cleaning, design and teaching don't open the refrigerant circuit.
What certification must you show a wholesaler to purchase HFC refrigerants for use in small appliances?
Why each option is right or wrong
Answer: B. EPA 608 Type I or Universal certification
- AWrong: Section 609 covers motor vehicle air conditioning, not small stationary appliances.
- BCorrect: a Section 608 card covering small appliances (Type I or Universal) lets you buy refrigerant, and since 2018 that sales restriction includes HFCs.
- CWrong: since January 1, 2018, HFC and other non-exempt substitute refrigerants are restricted to certified buyers just like CFCs and HCFCs.
- DWrong: a DOT hazmat credential is for shipping, not for buying refrigerant.
Since January 1, 2018, the sales restriction covers HFCs, so the wholesaler must verify a Section 608 certification. For small-appliance work that means Type I or Universal.
Which of the following statements is correct concerning the disposal of refrigerants from small appliances?
Why each option is right or wrong
Answer: C. The EPA requires technicians to recover refrigerants before disposal.
- ARecovery before disposal is mandatory, not optional.
- BKnowingly venting refrigerant during disposal is prohibited.
- CCorrect: refrigerant must be recovered before a small appliance is disposed of, either before it leaves the site or by the final processor.
- DRefrigerant is never thrown out with household trash; it must be recovered from the appliance first.
The EPA mandates the recovery of refrigerants from small appliances before their disposal to prevent environmental damage. Venting refrigerants into the atmosphere is illegal and harmful to the environment.
What EPA requirement must be met before disposing of a small appliance?
Why each option is right or wrong
Answer: A. All refrigerant must be properly recovered
- ACorrect: refrigerant must be recovered before final disposal, either by the person sending the appliance or by the final processor, who otherwise needs a signed statement that it was done.
- BEPA does not collect serial numbers of disposed appliances.
- CNo federal disposal permit exists for small appliances.
- DThe rule is about recovering the refrigerant, not about which facility recycles the metal.
Refrigerant must be recovered before a small appliance is disposed of. For small appliances that means recovering 80% or 90% of the charge, set by the recovery equipment's manufacture date and the compressor's condition, or evacuating to 4 inches of mercury vacuum (40 CFR 82.156, eCFR as of October 5, 2026).
A technician is retiring a residential refrigerator containing 1.5 pounds of R-134a. Which sequence follows the EPA disposal rules?
Why each option is right or wrong
Answer: B. Recover the refrigerant, record the disposal, and transport the unit.
- ACutting the lines before recovery releases the charge, which is prohibited venting.
- BCorrect: recover the refrigerant first, document it (the final processor needs a signed statement of who recovered it and when), then send the unit on.
- CTaking a unit to the landfill with refrigerant still inside skips the required recovery step.
- DReleasing any residual charge on purpose is venting, which is prohibited.
The refrigerant must be recovered before the refrigerator goes to final disposal, and the recovery is documented for the final processor, usually as a signed statement naming who recovered it. Cutting lines or releasing the charge first breaks the venting prohibition.
A certified technician is preparing several small appliances for disposal. Some units will be crushed for scrap metal, while others will be dismantled to salvage intact parts. What does the rule require for the refrigerant?
Why each option is right or wrong
Answer: C. Refrigerant must be recovered before either disposal process
- AVenting is never allowed during disposal, whether or not parts are salvaged.
- BSalvaging parts does not exempt a unit; the refrigerant still has to be recovered.
- CCorrect: whether a unit is crushed or dismantled for parts, the refrigerant must be recovered first.
- DUnits being dismantled for parts need recovery too; there is no crushing-only rule.
Whether a small appliance is crushed for scrap or dismantled for parts, its refrigerant must be recovered first.
When a discarded appliance is transferred to a scrap metal facility for final disposal, what documentation must the facility obtain and retain?
Why each option is right or wrong
Answer: D. A signed statement identifying the person who recovered the refrigerant
- AA hazardous waste manifest is not the document EPA requires for refrigerant recovery at disposal.
- BManufacturers do not certify evacuation of individual units being scrapped.
- CPurity analysis applies to reclaimed refrigerant (AHRI 700), not to an appliance being scrapped.
- DCorrect: the final processor must either recover the refrigerant or get a signed statement with the name and address of who recovered it and the date, and keep it for 3 years.
The EPA requires the final disposer to obtain a signed statement from the person who recovered the refrigerant, verifying proper recovery before disposal.
A scrapyard accepts intact small appliances but never opens the refrigerant circuits. According to EPA Section 608, what certification must the scrapyard workers hold?
Why each option is right or wrong
Answer: A. No federal technician certification is required.
- ACorrect: handling, transporting or storing sealed appliances does not open the refrigerant circuit, so no technician certification is required.
- BType I is for servicing small appliances; workers who never open the circuit do not need it.
- CUniversal certification is never required just to accept intact units.
- DThere is no stand-alone Core certification; Core is passed together with a type, and workers who never open the circuit need none.
Disposal-only activities that do not open the refrigerant circuit or perform active recovery operations generally do not impose EPA technician certification requirements on the disposer.
What type of metering device is typically found in small appliances?
Why each option is right or wrong
Answer: D. Capillary tube
- AThermostatic expansion valves are used on larger systems with varying loads, not typical small appliances.
- BFloat valves are found in some large flooded systems such as chillers, not small appliances.
- CElectronic expansion valves are costly and are used on larger, more complex systems.
- DCorrect: small appliances typically use a capillary tube, a simple fixed restriction with no moving parts.
Capillary tubes are typically used as metering devices in small appliances because they are simple, have no moving parts, and are inexpensive. They restrict refrigerant flow based on their length and inner diameter.
How should technicians handle access valves after completing service on a small appliance?
Why each option is right or wrong
Answer: C. Remove them and seal the process tube
- AWrong: access valves left on a small appliance tend to leak over time, so they shouldn't stay attached.
- BWrong: swapping in new valves still leaves a potential leak point on the process tube.
- CCorrect: remove the access valve when the job is done and seal the process tube, because these valves tend to leak over time.
- DWrong: a cap over a piercing or solderless valve doesn't remove the leak path through the valve itself.
Temporary access valves should be removed and the process tube sealed, so the access point doesn't leak later.
What is the correct way to identify the type of refrigerant in a small appliance before recovery?
Why each option is right or wrong
Answer: C. Check the nameplate or service ports on the unit
- APressure-temperature checks can be misleading if the refrigerant is mixed or contains air, so they are not the first step.
- BSmall appliances use many refrigerants (R-12, R-134a, R-600a, R-290 and others), so assuming one can lead to mixing in the recovery cylinder.
- CCorrect: the nameplate lists the refrigerant type and charge, and service ports or labels may also identify it.
- DA halide torch is a leak detector, not a refrigerant identifier, and burning refrigerant creates toxic byproducts.
Checking the nameplate or service ports is the correct method to identify refrigerant type. The nameplate will list the type and amount of refrigerant, while service ports may be color-coded or labeled according to the refrigerant used.
What characteristic of small appliances often makes recovery more challenging compared to larger systems?
Why each option is right or wrong
Answer: B. Capillary tubes create high resistance to flow
- ASmall appliances normally have a single refrigerant circuit.
- BCorrect: the narrow capillary tube restricts flow, so refrigerant moves slowly from one side of the system to the other during recovery, often requiring access on both sides.
- CSmall appliances do not have oil separation systems; that is a feature of larger equipment.
- DSmall appliances do not run at higher pressures than larger systems; pressure depends on the refrigerant.
Small appliances typically have capillary tubes as metering devices, which create high resistance to flow during recovery. This restricts refrigerant movement and slows down the recovery process.
What is the correct procedure if you discover a leak while servicing a small appliance?
Why each option is right or wrong
Answer: D. Repair the leak before recharging the system
- ASmall appliances have no EPA leak-reporting duty; leak repair and reporting rules apply to appliances with 50 lb or more.
- BLeak sealant does not fix the leak and can contaminate the system and recovery equipment.
- CRecharging a leaking system just releases more refrigerant over time.
- DCorrect: fix the leak before recharging, otherwise the new charge leaks out as well.
Repairing before recharging is good practice: the new charge would leak out too. EPA's leak-repair rules apply only to appliances with 50 lb or more of ozone-depleting refrigerant.
What is the maximum refrigerant charge that classifies an appliance as a 'small appliance' under EPA regulations?
Why each option is right or wrong
Answer: D. 5 pounds or less
- A3 lb is below the limit; appliances holding 3 to 5 lb are still small appliances.
- B15 lb is the size limit for system-dependent recovery, not the definition of a small appliance.
- C10 lb is not a limit in the definition; it confuses the 5 lb rule.
- DCorrect: a small appliance is factory-made, charged and hermetically sealed with 5 lb or less of refrigerant.
Under EPA regulations, a small appliance is defined as containing 5 pounds or less of refrigerant charge.
More practice across all four sections: Practice test · Timed mock
Concepts that get mixed up here
Earning and keeping a Type I card
Can you take the Type I test online?
Yes. EPA's list of approved programs flags those offering remote or online testing (EPA certifying programs, checked October 7, 2026), and some Type-I-only programs use the mail-in open-book format, which needs 84% under 40 CFR 82, Appendix D (e). Formats and proctoring are compared on EPA 608 testing online.
What does the Type I test cost?
Each approved program sets its own fee. ESCO Institute charges $85 for an online-proctored exam covering Core and all three types, one attempt each (ESCO, checked October 7, 2026); CHEERS charges $150 for a single type with a course and three attempts (CHEERS, checked October 7, 2026). The full table is on EPA 608 certification cost.
Is Type I enough for a home central air system?
No. A split system is charged in the field, so it isn't a small appliance (40 CFR 82.152, eCFR as of October 5, 2026). Refrigerant work on it needs Type II or Universal.
Does a Type I certificate expire?
Not under current EPA rules: EPA states that Section 608 technician certification credentials do not expire (EPA certification requirements, checked October 7, 2026). EPA can add a recertification requirement through the Federal Register (40 CFR 82.161(a)(5), eCFR as of October 5, 2026). More on whether EPA 608 certification expires.
Can a Type I pass be combined into Universal later?
A proctored one can. Universal may be earned in one sitting or by combining passing scores on separate Type I, II and III tests (40 CFR 82, Appendix D (a), eCFR as of October 5, 2026); a mail-in Type I pass is the exception.