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Contact Information:

Department of Environmental Quality
Office of Pollution Control
Environmental Permits Division
P.O. Box 10385
Jackson, MS 39289-0385

(601) 961-5171

Or view the Department's
Website

Relevant State
Sites:

Mississippi Public Service Commission

Mississippi Air Emissions Regulations

Major Utilities:

Mississippi Power Company

Entergy Mississippi, Inc.

Select Another State

Specific Issues:

EMISSIONS REGULATIONS

GUIDE TO FEDERAL REGULATIONS

STATE ENVIRONMENTAL REGULATIONS

SITING REGULATIONS

EXIT FEES

STANDBY RATES

BUILDING, ZONING
AND FIRE CODES


AMMONIA ISSUES

REPORTING REQUIREMENTS

ECONOMIC INCENTIVES

MISSISSIPPI

Air Emissions Regulations | Siting Regulations | Regulatory Codes | Standby Rates | Incentives

AIR EMISSIONS REGULATIONS:

Air Quality Status All areas are in attainment
EPA's Nonattainment Areas
Major Source Threshold PTE 250 tons of any criteria pollutant
Minor Source Permitting Exemption Size based. See below
Minor Source Treatment Opacity, SO2 and PM
Emergency Generating Limits PTE based on 500 hours per year

DE MINIMIS EXEMPTIONS:

Sources that have a potential to emit less than 10 tons per year of each criteria pollutant, 1 ton per year of an individual hazardous pollutant and 2.5 tons per year of any combination of hazardous pollutants are exempt from permitting. These sources are not required to notify the state.

MINOR SOURCE PERMITTING:

Sources with a potential to emit greater than the exempted sizes above must obtain a minor source permit. The state does not require modeling, but does enforce a 40% opacity limit and a 4.8 lb/MMBtu SO2 limit. A PM limit will be based on the unit's size in BTUs, but the PM limit is rarely an issue for applicants. No other controls are likely.

There is a 30-day public comment period for sources with a potential to emit greater than 100 tons per year of a criteria pollutant. The entire permitting process takes 30 days if there is not a comment period, but up to 120 with a comment period.

MAJOR NSR/PSD PERMITTING:

A potential to emit 250 tons per year of a criteria pollutant triggers PSD.

TREATMENT OF EMERGENCY ENGINES:

Emergency engines can have their potential to emit based on 500 hours per year if they agree to operate only for blackouts and maintenance. Based on this potential to emit calculation the unit may qualify for the de minimus exemption above. Otherwise the source is permitted normally.

SITING REQUIREMENTS FOR NON-UTILITY GENERATORS:

All electric power-generating facilities are required to acquire a Facility Certificate from the Mississippi Public Service Commission. In order to obtain this Certificate, the petitioner must establish that the proposed facility fills some demand for public convenience and necessity. However, the PSC will exempt on-site power producers from these requirements. Before the Certificate is granted the applicant must provide proof that the proposed facility is in compliance with all relevant state environmental regulations. The Mississippi Public Service Commission also conducts public hearings on the issue.

§ 77-3-14. Certificate of public convenience and necessity required for construction of electrical generating and transmitting facilities

(1) Notwithstanding the provisions of Section 77-3-11, Mississippi Code of 1972, and Section 77-3-13, Mississippi Code of 1972, no public utility or other person shall begin the construction of any facility for the generation and transmission of electricity to be directly or indirectly used for the furnishing of public utility service in this state, even though the facility be for furnishing the service already being rendered, without first obtaining from the commission a certificate that the public convenience and necessity requires, or will require, such construction.

(6) The certification requirements of this section shall not apply to persons who construct an electric generating facility primarily for that person's own use and not for the primary purpose of producing electricity, heat or steam for sale to or for the public for compensation; and the commission may provide for exemption from certification requirements for cogeneration facilities and small standby facilities; provided, however, that such persons shall, nevertheless, be required to report to the commission the proposed construction of such a facility before beginning construction thereof.

BUILDING, ZONING AND FIRE CODES:

Mississippi State Fire Marshal

There is no state-mandated building code for any building or occupancy classification in the state of Mississippi. It is up to local jurisdictions to adopt and enforce building codes.
Mississippi State Fire Code
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.

UTILITY STANDBY RATES:

Mississippi Power


SPSS-3B Small Power Standby and Supplemental Service Rate

LPSS-3B Large Power Standby and Supplemental Service Rate
Load Size < 100 kW and less than 5,001 kW > 5,000 kW
Basic Charge $1,025.00 per month $320.00 per month
Metering Service Reservation Charge:

$1.45 per kW of contracted capacity

Energy Charge:

$1.23 per kW of contracted capacity
Reservation Charge:

$1.45 per kW of contracted capacity

Energy Charge:

$1.23 per kW of contracted capacity
Standby Service KW Billing Requirement Charge:

$8.20 per kW

Energy Charge:

0.241 cents/kWh
Demand Charge:

May - October: $0.47 per kW/Day

November - April: $0.30 per kW/Day

Energy Charge:

0.241 cents/kWh


****Special Note: These are the Standby Rates in effect at the time of the creation of this database. For the most current utility standby rates, click on the utility's name in the box named "Major Utilities" in the upper left-hand corner of this page.

ECONOMIC INCENTIVES:

The Energy Investment Loan Program provides financial assistance in the form of a loan to individuals, partnerships, or corporations, for either capital improvements, or in the design and development of innovative energy conservation processes. The principal purpose of the improvement should be the development and demonstration of efficient, environmentally acceptable and commercially feasible technologies, techniques or processes while effectively utilizing existing alternative and conventional energy resources.

The Energy Investment Program offers loans at a rate of 3% below the Prime Interest rate prevailing at the time of closing, in amounts up to $300,000, which can be amortized over a period of time not to exceed 7 years. Loans are secured by a lien or liens on either the measures installed and/or other unencumbered business assets, personal guarantees by the firm's or organization's owner or officers, surety bonds, or a combination of these.

For more information contact:

Mississippi Energy Division
Mississippi Development Authority
Post Office Box 849
Jackson, MS 39205-0849

Phone: 601-359-6600
Fax: 601-359-6642



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