Multifamily Acceptance Testing Before Final Inspection

The order that works

1. The Certificate of Compliance is approved with the permit.
2. Each trade completes its Certificate of Installation, registered where field verification applies. The ECC-Rater checks that these and the compliance certificate are registered before testing, and cannot sign a verification for a measure with no registered installation certificate.
3. The ECC-Rater tests and registers the Certificate of Verification. A registered copy is posted, or available, for the final inspection of each dwelling unit.
4. Acceptance technicians sign certificates of acceptance for common-area systems before the occupancy permit.

In the dwelling units

At three habitable stories or fewer, the ECC-Rater verifies whole-dwelling ventilation airflow, range hood ratings, the unit air leakage limit of 0.3 cfm per square foot, duct leakage, refrigerant charge and central hot water distribution. From four stories, the ventilation and leakage verifications may go to a certified mechanical acceptance test technician instead. Quality insulation installation has two certificates, LMCV-ENV-21-H for framing and LMCV-ENV-22-H for insulation installation.

In common areas and shafts

Section 160.3(d)1 sends common-area mechanical systems through acceptance tests under Nonresidential Appendix NA7: outdoor air, constant volume single zone controls, new or altered ducts, economizers, DOAS, HRV or ERV, and demand control ventilation. Lighting shut-off, daylight, demand response and outdoor controls go to a certified lighting controls technician under Section 160.5(e). A central ventilation shaft has its own leak test under NA7.18.3, which the manual lets a technician run at rough-in. Where a technician takes over the rater's tests in a building of four stories or more, sampling is not allowed.

Alterations differ

In existing units each altered measure is verified individually, with no sample groups, and the department may waive paperwork where nothing needs field verification.

Detail on the common-area side is on common area HVAC and common area lighting. The unit tests are explained under compartmentalization, the forms under LMCC certificate, and who may test on acceptance test technicians. See also the ECC Program and the multi-family service.

Common Title 24 Questions

1. Do apartments need Title 24?
2. Does a duplex need Title 24?
3. Do triplexes and fourplexes need Title 24?
4. Which Title 24 forms does a multi-family project use?
5. What is an LMCC certificate?
6. How much does a multi-family Title 24 report cost?

Frequently Asked Questions

Does the ECC-Rater test before or after the installer's certificate?

Is ECC verification the same as the old HERS verification?

Explore Multi-Family

1. Multifamily Addition Title 24 Requirements
2. Multifamily Common Area HVAC Title 24 Requirements
3. Multifamily Common Area Lighting Title 24 Requirements
4. What If Plan Check Returns Energy Corrections on a Multi-Family Project?
5. Does Multi-Family HVAC Work Need Title 24?

View all Multi-Family guides → · Permits and Compliance · Title 24 guide