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Contact Information:
State of Michigan
Air Quality Division
P.O. Box 30260
Lansing, MI 48909
(410) 631-3276
Or view the Department's
Website
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MICHIGAN
DE MINIMIS EXEMPTIONS:
Sources that have a heat input less than the following are exempt from permitting:
IC engines: 10 MMBtu/hr
Units burning natural gas: 50 MMBtu/hr
Units burning low sulfur distillate oil: 20 MMBtu/hr
These sources are not required to notify the state but it is recommended.
MINOR SOURCE PERMITTING:
Sources that are larger than the exempted sizes above must obtain a minor source permit. The state generally
requires state-of-the-art (SOTA) combustion systems for these units, but no post-combustion controls. There is
a 20% opacity limit and a 1.5% fuel sulfur limit. Modeling is required to determine ambient impact if any, but
this is done by the state. Other determinations are made on a case-by-case basis.
There is a 30 day public comment period, but generally only for synthetic minor sources. The entire permitting
process can take from 3 months to a year.
MAJOR NSR/PSD PERMITTING:
A potential to emit 250 tons per year of a criteria pollutant triggers PSD.
TREATMENT OF EMERGENCY ENGINES:
Emergency engines generally obtain a permit that limits operation to 500 hours per year.
The Michigan Public Service Commission does not regulate onsite electrical generators in Michigan that are not owned by a regulated
utility company, unless they intend to sell excess capacity to retail customers. (see Michigan Compiled Laws,
460.10e). There is no reporting requirement for onsite electrical generators to provide information to the Michigan PSC about
construction plans or progress in Michigan. Merchant plants being constructed in Michigan are usually required to
obtain approvals from local land-use and zoning authorities, and environmental permits. Plants that have been
publicly announced or proposed may not yet have received all required approvals and permits.
Click here for further information about merchant plants in Michigan.
There are no exit fees for DG in the state of Michigan. (See below)
Senate Bill SB 937 (2000), Public Act 141, Section 10a, (6)
(6) This act does not prohibit or limit the right of a person to obtain self-generation power, and it does not
impose a transition, implementation, exit fee, or any other similar charge on self-service power. A person using
self-service power is not an electric supplier, electric utility, or a person conducting an electric utility
business. As used in this subsection, "self-service power" means any of the following:
a) Electricity generated and consumed at an industrial site or contiguous industrial site or single commercial
establishment or single residence without the use of an electric utility's transmission and distribution system.
b) Electricity generated primarily by the use of by-product fuels, including waste water solids, and the electricity
is consumed as part of a contiguous facility, with the use of an electric utility's transmission and distribution
system, but only if the point or points of receipt of the power within the facility are not greater than 3 miles
distant from the point of generation.
c) A site or facility with load existing on the effective date of the amendatory act that added this section that
is divided by an inland body of water or by a public highway, road, or street but that otherwise meets this
definition and meets the contiguous requirement of this subdivision regardless of whether self-service power was
being generated on the effective date of the amendatory act that added this section.
d) A commercial or industrial facility or single residence that meets the requirements of subdivision (a) or (b)
meets this definition whether or not the generation facility is owned by an entity different from the owner of
the commercial or industrial site or single residence.
Michigan Department of Consumer and Industry Services, Bureau of Construction Codes and Fire Safety
The division administers the state building code, which sets construction standards to assure the health,
safety, comfort and security of building occupants. The division provides interpretations on the adopted
codes, gives information regarding building materials and consults with municipal officials, design
professionals and the general public relating to all types of projects.
Boiler Division
Electrical Division
Mechanical Division
Building Division
Bureau of Fire Services
Office of Local Government & Consumer Services
Plumbing Division
International Code Council State Adoption Information Page
Provides an easy to use US map to locate state and local adoption of the International Code Council's model codes.
US DOE's Office of Building Technology, State and Community Programs, Building Codes Database
The US DOE's database provides a comprehensive look at a state's building code implementation and enforcement
process.
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