Mainstream Engineering EPA Certification Courses
by Mainstream Engineering Corporation
Lowest-cost EPA 608 online certification with free downloadable study manuals for all types — EPA-approved certifier operating epatest.com for over two decades.
6.4 - Good Media

Overview
Mainstream Engineering is one of the original EPA-approved third-party certifiers. Type I is open-book, online. Universal (Types I/II/III combined) requires proctoring. Also offers EPA 609 (MVAC). Free downloadable study manuals for Section 608, Section 609, and R-410A.
FSH Score Breakdown
Customer Reviews
Key Features
| Feature | Value |
|---|---|
| Online Course Availability | ✅ |
| Self-Paced Access | ✅ |
| In-Person Hands-On Lab | ❌ |
| Online Delivery | ✅ |
| Universal Certification Prep | ✅ |
| Hands-On Lab Component | ❌ |
| Official Exam Voucher Included | ❌ |
All Features
| Feature | Value |
|---|---|
| A2L Refrigerant Safety Training | ❌ |
| Degree or Diploma Program | ❌ |
| Continuing Education Credits | ❌ |
| Self-Paced Learning Option | ✅ |
| Job Placement Assistance | ❌ |
| Industry-Recognized Credential | ✅ |
| Job Placement Assistance | ❌ |
| Financial Aid Available | ❌ |
| Financial Aid Available | ❌ |
| Exam Fee Included | ❌ |
| Instructor Mentoring Support | ❌ |
| In-Person Option | ❌ |
| Mobile App Access | ❌ |
| Apprenticeship Pathway | ❌ |
Pricing
- Model
- Custom
- Starting at
- $27
- Notes
- Per-course pricing. Type I $26.95 (online, open-book); free study manuals
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