ILLINOIS POLLUTION CONTROL BOARD 
July 11, 2002 
 
EXXON MOBILE OIL CORPORATION 
(Low Sulfur MO-GAS Equipment) (Property 
Identification Number 10-22-100-006-0010), 
 
 Petitioner, 
 
 v. 
 
ILLINOIS ENVIRONMENTAL 
PROTECTION AGENCY, 
 
 Respondent. 
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     PCB 02-223 
     (Tax Certification) 
 
 
ORDER OF THE BOARD (by C.A. Manning): 
 
On June 24, 2002, the Illinois Environmental Protection Agency (Agency) 
recommended that the Board certify certain facilities of Exxon Mobile Oil Corporation (Exxon) 
as “pollution control facilities” for preferential tax treatment under the Property Tax Code (35 
ILCS 200/11-5 
et seq.
 (2000)).  The Agency filed the recommendation under Part 125 of the 
Board’s procedural rules (35 Ill. Adm. Code 125).  In this order, the Board describes the legal 
framework for tax certifications, discusses the Agency’s recommendation, and certifies that 
Exxon’s facilities are pollution control facilities. 
 
LEGAL FRAMEWORK 
 
Under the Property Tax Code, “[i]t is the policy of this State that pollution control 
facilities should be valued, at 33 1/3% of the fair cash value of their economic productivity to 
their owners.”  35 ILCS 200/11-5 (2000); 
see also
 35 Ill. Adm. Code 125.200(a)(2).  “For tax 
purposes, pollution control facilities shall be certified as such by the Pollution Control Board 
and shall be assessed by the Department [of Revenue].”  35 ILCS 200/11-20 (2000); 
see also
 
35 Ill. Adm. Code 125.200(a). 
 
Under Section 125.202 of the Board’s procedural rules, a person may submit an 
application for tax certification to the Agency.  35 Ill. Adm. Code 125.202.  If the Agency 
receives a tax certification application, the Agency must file with the Board a recommendation 
on the application, unless the applicant withdraws the application.  35 Ill. Adm. Code 
125.204(a).  Among other things, the Agency’s filing must recommend that the Board issue or 
deny tax certification.  35 Ill. Adm. Code 125.204(a)(4).  If the Board finds “that the claimed 
facility or relevant portion thereof is a pollution control facility . . ., the Pollution Control 
Board . . . shall enter a finding and issue a certificate to that effect.”  35 ILCS 200/11-25 
(2000); 
see also
 35 Ill. Adm. Code 125.216(a). 
 
  
 
 
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AGENCY RECOMMENDATION 
 
The Agency states that it received a tax certification application from Exxon on April 4, 
2002.  Agency Recommendation (Agency Rec.) at 1.  On June 24, 2002, the Agency filed a 
recommendation on the application with the Board.  The Agency’s recommendation identifies 
the facilities at issue:   
 
Low sulfur MO-GAS equipment whose primary purpose is to remove sulfur 
compounds in the production of gasoline and to meet the US EPA Tier 2 Motor 
Vehicle Emission Standards and Gasoline Sulfur Control Requirements, 
reducing SO2 emissions once the gasoline is consumed.  This is done by 
increasing the capacity of existing desulfurization units (the pretreater and 
hydrofinisher units) and by installing a new selective hydrogenation unit and 
naptha splitter.  Improvements must also be made to the south sulfur recovery 
plant, i.e., addition of two additional conversion beds (one per train), to handle 
the additional sulfur.  Agency Rec. at 1-2.   
 
The Agency’s recommendation also identifies the location of the facilities:  Section 22, 
Range 9, I-55 and Arsenal Road East, Channahon, Will County.  Agency Rec. at 1. 
 
The Agency recommends that the Board certify that the identified facilities are pollution 
control facilities as defined in Section 11-10 of the Property Tax Code (35 ILCS 200/11-10 
(2000)) because the primary purpose of the facilities is the elimination, prevention, or 
reduction of air pollution.  Agency Rec. at 2. 
 
TAX CERTIFICATE 
 
 The Board finds and certifies that Exxon’s facilities identified in this order are pollution 
control facilities under the Property Tax Code (35 ILCS 200/11-10 (2000)).  Under Section 11-
25 of the Property Tax Code, the effective date of this certificate is “the date of application for 
the certificate or the date of the construction of the facility, which ever is later.”  35 ILCS 
200/11-25 (2000); 
see also
 35 Ill. Adm. Code 125.216(a).  Section 125.216(d) of the Board’s 
procedural rules states that the Clerk “will provide the applicant and the Agency with a copy of 
the Board’s order setting forth 
the Board’s findings and certificate, if any
.”  35 Ill. Adm. Code 
125.216(d) (quoting in italics 35 ILCS 200/11-30 (2000)).  The Clerk therefore will provide 
Exxon and the Agency with a copy of this order. 
 
IT IS SO ORDERED. 
 
Section 41(a) of the Environmental Protection Act provides that final Board orders may 
be appealed directly to the Illinois Appellate Court within 35 days after the Board serves the 
order.  415 ILCS 5/41(a) (2000); 
see also
 35 Ill. Adm. Code 101.300(d)(2), 101.906, 
102.706.  Illinois Supreme Court Rule 335 establishes filing requirements that apply when the 
 
  
 
 
  
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Illinois Appellate Court, by statute, directly reviews administrative orders.  172 Ill. 2d R. 335.  
The Board’s procedural rules provide that motions for the Board to reconsider or modify its 
 final orders may be filed with the Board within 35 days after the order is received.  35 Ill. 
Adm. Code 101.520; 
see also
 35 Ill. Adm. Code 101.902, 102.700, 102.702. 
 
I Dorothy M. Gunn, Clerk of the Illinois Pollution Control Board, certify that the 
Board adopted the above order on July 11, 2002, by a vote of 5-0. 
 
Dorothy M. Gunn, Clerk 
Illinois Pollution Control Board