Source: https://www.federalregister.gov/documents/2018/12/13/2018-26924/air-plan-approval-michigan-revisions-to-part-1-general-provisions-rules
Timestamp: 2020-01-20 19:08:15
Document Index: 24070035

Matched Legal Cases: ['art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1']

64056-64059 (4 pages)
FRL-9987-73-Region 5
R 336.1103 Definitions; C
R 336.1119 Definitions; S
R 336.1120 Definitions; T
https://www.federalregister.gov/d/2018-26924 https://www.federalregister.gov/d/2018-26924
The Environmental Protection Agency (EPA) is proposing to approve a request submitted by the Michigan Department of Environmental Quality (MDEQ) on December 12, 2017, and supplemented on August 9, 2018, as a revision to Michigan's state implementation plan (SIP). The SIP submission incorporates several revisions to Michigan's Air Pollution Control Rules entitled “Part 1—General Provisions.” The revisions include Start Printed Page 64057administrative changes to the existing rule.
Submit your comments, identified by Docket ID No. EPA-R05-OAR-2017-0741 at https://www.regulations.gov or via email to blakley.pamela@epa.gov. For comments submitted at Regulations.gov, follow the online instructions for submitting comments. Once submitted, comments cannot be edited or removed from Regulations.gov. For either manner of submission, EPA may publish any comment received to its public docket. Do not submit electronically any information you consider to be Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Multimedia submissions (audio, video, etc.) must be accompanied by a written comment. The written comment is considered the official comment and should include discussion of all points you wish to make. EPA will generally not consider comments or comment contents located outside of the primary submission (i.e. on the web, cloud, or other file sharing system). For additional submission methods, please contact the person identified in the FOR FURTHER INFORMATION CONTACT section. For the full EPA public comment policy, information about CBI or multimedia submissions, and general guidance on making effective comments, please visit https://www2.epa.gov/​dockets/​commenting-epa-dockets.
On December 12, 2017, and August 9, 2018, MDEQ submitted a request to EPA to incorporate revisions to Michigan's Air Pollution Control Rules entitled Part 1—General Provisions (Part 1). The submission revises the following Michigan's Air Pollution Control rules: R 336.1101 to 1103, R 336.1106 to 1109, R 336.1112 to 1116, and R 336.1118 to 1123. The revisions are primarily administrative changes.
Part 1 is a compilation of the definitions used in Michigan's rules. The revisions to Part 1 include a range of administrative changes, from grammatical corrections to language updates. Examples of these revisions include changing terminology such as “which” to “that,” or “commission” to “department.”
MDEQ revised the language in several rules to be consistent with rule R 336.1902, namely, requiring all of the “Adoption by reference” for various test methods be located in R 336.1902. For example, the definitions of “Heavy liquids,” “PM-10,” “PM 2.5,” “Reid vapor pressure,” “True vapor pressure,” and “Waxy, heavy pour crude oil,” the revised rule language shows that the applicable test method adopted by reference is in R 336.1902.
In rule R 336.1122(f) MDEQ updated the definition of “Volatile organic compound” (VOC) to reflect revisions made to the Federal definition at 40 CFR 51.100(s). MDEQ amended the list of compounds excluded from the definition of VOC to add the following six compounds: (1.) HCF2 OCF2 H (HFE-134), (2.) HCF2 OCF2 OCF2 H (HFE-236cal2), (3.) HCF2 OCF2 CF2 OCF2 H (HFE-338pcc13), (4.) HCF2 OCF2 OCF2 CF2 OCF2 H (H-Galden 1040X or H-Galden ZT 130 (or 150 or 180)), (5.) Trans 1-chloro-3,3,3-trifluoroprop-1-ene (Solstice[TM] 1233zd(E)), and (6.) 2-amino-2-methyl-1-propanol (AMP). These additional compounds were determined by EPA to have negligible photochemical reactivity, and therefore, EPA does not expect them to make a significant contribution to ozone formation.[1] MDEQ also updated an existing exemption for the compound t-butyl acetate to be consistent with EPA's removal of the recordkeeping, emissions reporting, photochemical dispersion modeling and inventory requirements related to the use of t-butyl acetate as a VOC. See 81 FR 9339 (February 25, 2016).
Last, other modifications to Part 1 include the deletion and addition of several definitions. MDEQ revised Part 1 to remove definitions that are unclear, incorrect, redundant, or no longer used in Michigan's rules. MDEQ removed “Allowed emissions,” “Federal land manager,” “Linearized multistage computer model,” “Offset ratio,” and “Very large precipitator.” In like manner, MDEQ revised Part 1 by adding the following definitions: “Adhesion prime,” “Air pollution control equipment,” “Applicant,” “Federally enforceable,” “Field gas,” “Field testing,” “Flexible coating,” and “Fog coat,” “Organic resin,” “Secondary emissions,” “Significant,” “Stencil coat,” “Styrene devolatilizer unit,” “Styrene recovery unit,” “Synthetic natural gas,” “Synthetic organic chemical and polymer manufacturing plant,” “Synthetic organic chemical and polymer manufacturing process unit,” “Used oil,” and “Wayne county permit.”
In rule R 336.1103, MDEQ requested the removal of (pp) from the definition of “Creditable.” EPA is taking no action to remove this definition from Michigan's SIP because EPA already removed the definition from Part 1 in a previous rulemaking. S ee 78 FR 76064 (December 16, 2013).
MDEQ amended this rule by adding (c) for the definition “Secondary risk screening level,” and (q) for the definition “State-only enforceable.” Secondary risk screening level means “the concentration of a possible, probable, or known human carcinogen in ambient air which has been calculated, for regulatory purposes, according to the risk assessment procedures in R 336.1229(1), to produce an estimated upper-bound lifetime cancer risk of 1 in 100,000.” State-only enforceable means “that the limitation or condition is derived solely from the act and the air pollution control rules and is not federally enforceable. State-only enforceable requirements include R 336.1224, R 336.1225, R 336.1901, any permit requirement established solely pursuant to R 366.1201(1)(b), or any other regulation that is enforceable Start Printed Page 64058solely under the act and is not federally enforceable.” EPA is taking no action on these State-only provisions.
In rule 336.1120(f), “`Toxic air contaminant' or `TAC'” is defined as “any air contaminant for which there is no National Ambient Air Quality Standard (NAAQS) and which is or may become harmful to public health or the environment when present in the outdoor atmosphere in sufficient quantities and duration.” This definition includes a list of exempt substances that are not considered TACs. MDEQ amended the list of exempt substances to add the following: “animal or plant materials, including extracts and concentrates thereof, used as ingredients in food products or dietary supplements in accordance with applicable regulations of the United States Food and Drug Administration.” EPA is taking no action on this amendment to rule R 336.1120(f).
MDEQ revised Part 1 to add the following definitions: R 336.1115(d) for “`Oral reference dose' or `RfD',” R 336.1119(x) for “Sufficient evidence,” and R 336.1123(c) for “Weight of evidence.” EPA is taking no action on these definitions.
Michigan requested that EPA approve the following rules: R 336.1101 Definitions; A (except for (a) Act, (h) Air pollution, and (q) Aqueous based parts washer), R 336.1102 Definitions: B, R 336.1103 Definitions C (except for (aa) Cold cleaner), R 336.1106 Definitions; F, R 336.1107 Definitions; G, R 336.1108 Definitions; H, R 336.1109 Definitions; I, R 336.1112 Definitions; L, R 336.1113 Definitions; M, R 336.1114 Definitions; N, R 336.1115 Definitions; O (except for (d) “`Oral reference dose' or `RfD'”), R 336.1116 Definitions; P, R 336.1118 Definitions; R, R 336.1119 Definitions; S (except for (c) Secondary risk screening level, (q) State-only enforceable, and (x) Sufficient evidence), R 336.1120 Definitions; T (except for (f) “`Toxic air contaminant' or `TAC'”), R 336.1121 Definitions; U, R 336.1122 Definitions; V, R 336.1123 Definitions; W (except for (c) Weight of evidence). We are also proposing approval of a revision removing the following definitions from Part 1: “Allowed emissions,” “Federal land manager,” “Linearized multistage computer model,” “Offset ratio,” and “Very large precipitator.”
EPA is not taking any action on R 336.1103(pp) “Creditable,” R 336.1115(d) “`Oral reference dose' or `RfD',” 336.1119(c) “Secondary risk screening level,” R 336.1119(q) “State-only enforceable,” R 336.1119(x) “Sufficient evidence,” R 336.1120(f) “`Toxic air contaminant' or `TAC',” and R 336.1123(c) “Weight of evidence.”
In this rule, EPA is proposing to include in a final EPA rule regulatory text that includes incorporation by reference. In accordance with requirements of 1 CFR 51.5, EPA proposes to incorporate by reference Michigan Administrative Code R 336.1101 Definitions; A (except for (a) Act, (h) Air pollution, and (q) Aqueous based parts washer), R 336.1102 Definitions: B, R 336.1103 Definitions C (except for (aa) Cold cleaner), R 336.1106 Definitions; F, R 336.1107 Definitions; G, R 336.1108 Definitions; H, R 336.1109 Definitions I, R 336.1112 Definitions; L, R 336.1113 Definitions; M, R 336.1114 Definitions; N, R 336.1115 Definitions; O (except for (d) “`Oral reference dose' or `RfD'”), R 336.1116 Definitions; P, R 336.1118 Definitions; R, R 336.1119 Definitions; S (except for (c) Secondary risk screening level, (q) State-only enforceable, and (x) Sufficient evidence), R 336.1120 Definitions; T (except for (f) “`Toxic air contaminant' or `TAC'”), R 336.1121 Definitions; U, R 336.1122 Definitions; V, R 336.1123 Definitions; W (except for (c) Weight of evidence), effective December 20, 2016. EPA has made, and will continue to make, these documents generally available through www.regulations.gov and at the EPA Region 5 Office (please contact the person identified in the FOR FURTHER INFORMATION CONTACT section of this preamble for more information).
Does not contain any unfunded mandate or significantly or uniquely affect small governments, as described in the Unfunded Mandates Reform Act of 1995 (Pub. L. 104-4);Start Printed Page 64059
1. See 78 FR 9823, February 12, 2013; 78 FR 53029, August 28, 2013; 79 FR 17037, March 27, 2014.
[FR Doc. 2018-26924 Filed 12-12-18; 8:45 am]