rolling coal

Rolling coal is a form of conspicuous air pollution, used for entertainment or as protest. Some drivers intentionally trigger coal rolling in the presence of hybrid vehicles (a practice nicknamed "Prius repellent") to cause their drivers to lose sight of the road and inhale harmful air pollution. Coal rolling may also be directed at foreign vehicles, bicyclists, protesters, and pedestrians.{{cite web|url=http://ecowatch.com/2014/07/18/colbert-rolling-coal/ |title=Colbert Pokes Fun at 'Rolling Coal,' the Insecure Trucker Driver's Response to Environmentalists |work=EcoWatch |date=July 18, 2014|access-date=July 30, 2014}}{{cite web|url=http://www.ctvnews.ca/canada/b-c-coal-rollers-say-they-re-not-out-to-get-environmentalists-1.1916039 |title=Rolling coal: Canadian diesel truck lovers insist they're not like U.S. counterparts |work=CTV News |date=July 16, 2014 |access-date=July 30, 2014}}{{cite web |last=Oberg |first=Jamie |url=http://www.kctv5.com/story/26057923/police-warn-drivers-against-rolling-coal |title=Police warn drivers against 'rolling coal' |work=KCTV |date=July 18, 2014 |access-date=July 30, 2014 |archive-date=July 22, 2014 |archive-url=https://web.archive.org/web/20140722090425/http://www.kctv5.com/story/26057923/police-warn-drivers-against-rolling-coal |url-status=dead }}{{cite web|author= |url=http://www.huffingtonpost.com/2014/07/06/rolling-coal-photos-video_n_5561477.html |title=Political Protest Or Just Blowing Smoke? Anti-Environmentalists Are Now 'Rolling Coal' |work=Huffington Post |date=July 6, 2014 |access-date=July 30, 2014}} Practitioners cite "American freedom" and a stand against "rampant environmentalism" as reasons for coal rolling.{{cite news|url=https://www.nytimes.com/2016/09/05/business/energy-environment/rolling-coal-in-diesel-trucks-to-rebel-and-provoke.html |title='Rolling Coal' in Diesel Trucks, to Rebel and Provoke |work=The New York Times|first=Hiroko|last=Tabuchi|author-link=Hiroko Tabuchi |date=September 4, 2016|access-date=September 11, 2016}}{{Cite web|url=https://www.vice.com/en_us/article/nothing-wrong-with-rolling-coal-711|title=There's Nothing Wrong with Rolling Coal |website=Vice|date=11 July 2014 |access-date=January 24, 2017}}

A concern is road traffic safety violations, as the black smoke impairs visibility, increasing the risks of motor vehicle crashes,{{cite web|last1=Boyd|first1=Shaun|title=Lawmaker Wants To Stop 'Coal Rollers' From Intentionally Blasting Black Smoke|url=http://denver.cbslocal.com/2016/04/04/coal-rollers-rolling-coal-colorado-joann-ginal/ |date=April 4, 2016|work=CBS Denver|access-date=April 7, 2016}} and is a violation of clean air laws.

Some incidents have led to injuries. In 2021, six bicyclists training for a road race were run over by a 16-year-old who was rolling coal along Business U.S. Highway 290 in Waller County, Texas, outside Houston, when he attempted to drive ahead of the group to engulf them in the exhaust. Two of the cyclists were injured severely enough to require medical evacuation by helicopter. The motorist was not charged at the time of the collision; local cyclists' groups were outraged.{{cite news|last=Edwards|first=Jonathan|title=A teenager allegedly hit 6 bicyclists with his truck, sending 3 to the hospital. A biker says the driver was harassing them.|url=https://www.washingtonpost.com/nation/2021/09/30/texas-teen-coal-rolls-hits-bicyclists/|newspaper=The Washington Post|date=September 30, 2021|access-date=October 4, 2021}} He was later charged with six felony counts of aggravated assault with a deadly weapon.{{Cite news|last=Begley|first=Dug|date=November 8, 2021|title=Waller DA files 6 felonies for 'rolling coal' crash that injured 6 cyclists|work=Houston Chronicle|url=https://www.houstonchronicle.com/news/houston-texas/transportation/article/Waller-driver-who-rolled-coal-could-face-16603437.php#photo-21690122|access-date=November 9, 2021}}

In July 2014, the United States Environmental Protection Agency stated that the practice was illegal, as it violated the Clean Air Act which prohibits the manufacturing, sale, and installation "of a part for a motor vehicle that bypasses, defeats, or renders inoperative any emission control device" and "prohibits anyone from tampering with an emission control device on a motor vehicle by removing it or making it inoperable prior to or after the sale or delivery to the buyer."{{cite news|title=Washington: 'Rolling Coal' by Anti-Environmentalists Dubbed Illegal by EPA |work=Common Dreams |first=Lauren |last=McCauley |date=July 8, 2014 }}{{Cite web|url=https://www.epa.gov/enforcement/air-enforcement|title=Air Enforcement |date=May 3, 2013|website=US EPA|access-date=February 2, 2019}}{{Cite news |url=https://www.nytimes.com/2016/09/05/business/energy-environment/rolling-coal-in-diesel-trucks-to-rebel-and-provoke.html|title='Rolling Coal' in Diesel Trucks, to Rebel and Provoke |last=Tabuchi |first=Hiroko |date=September 4, 2016 |newspaper=The New York Times |access-date=February 2, 2019|issn=0362-4331}}

{{blockquote |text=The Environmental Protection Agency has made it a "national priority" to erase what it says is "a significant contributor to air pollution." A 2020 EPA report said 15 percent of diesel trucks in the U.S. are rigged to "delete" emissions controls. According to government estimates, the practice can increase nitrogen oxide emissions as much as 310 times, non-methane hydrocarbons 1,400 times, and carbon monoxide 120 times. ... "Businesses that manufacture and sell illegal devices to defeat a vehicle's emissions controls foster pollution and risk decades of progress in curtailing harmful emissions from motor vehicles in this country," said Assistant Attorney General Todd Kim of the Justice Department's Environment and Natural Resources Division.}}

In 2023, companies in Idaho and California pleaded guilty in federal court to conspiracy to violate the Clean Air Act and agreed to fines of {{US$|1}}{{nbsp}}million each.{{cite news |url=https://www.rawstory.com/raw-investigates/rolling-coal-donald-trump-supporters/ |title=Feds crack down on 'rolling coal' — a troll-tastic pastime of some Trump supporters |date=August 24, 2023 |first=Mark |last=Alesia |newspaper=Raw Story |url-access=subscription |access-date=August 24, 2023}}

California law prohibits operating a vehicle "in a manner resulting in the escape of excessive smoke, flame, gas, oil, or fuel residue."{{Cite web|url=https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH§ionNum=27153|title=California Vehicle Code division 12, chapter 5, article 2|publisher=California Legislative Information|access-date=November 26, 2020}} The California Highway Patrol or local police can cite a vehicle under this section or others for rolling coal.{{Cite web|url=https://www.pe.com/2015/08/02/on-the-road-rolling-coal-and-warren-road-improvements/|title=On the road: 'Rolling coal' and Warren Road improvements|website=The Press-Enterprise|date=2 August 2015|access-date=November 26, 2020}}

Prohibits nuisance exhibition of motor vehicle exhaust, which is the knowing release of soot, smoke, or other particulate emissions from a motor vehicle with a gross vehicle weight rating of 14,000 pounds or less into the air and onto roadways, other motor vehicles, bicyclists, or pedestrians, in a manner that obstructs or obscures another person's view of the roadway, other users of the roadway, or a traffic control device or otherwise creates a hazard to a driver, bicyclist, or pedestrian.{{Cite web|url=https://advance.lexis.com/documentpage/?pdmfid=1000516&crid=bbcb8607-088f-4a1b-963e-4eec9817f275&nodeid=ABRAAEAABAADAAQ&nodepath=/ROOT/ABR/ABRAAE/ABRAAEAAB/ABRAAEAABAAD/ABRAAEAABAADAAQ&level=5&haschildren=&populated=false&title=42-4-314.+Automobile+emissions+control+systems+-+tampering+-+operation+of+vehicle&config=014FJAAyNGJkY2Y4Zi1mNjgyLTRkN2YtYmE4OS03NTYzNzYzOTg0OGEKAFBvZENhdGFsb2d592qv2Kywlf8caKqYROP5&pddocfullpath=/shared/document/statutes-legislation/urn:contentItem:5TYF-BSS0-004D-120N-00008-00&ecomp=-_579kk&prid=707b8f20-ef9e-49e9-8e32-c1b74dd43e3a|archive-url=https://web.archive.org/web/20190203084927/https://advance.lexis.com/documentpage/?pdmfid=1000516&crid=bbcb8607-088f-4a1b-963e-4eec9817f275&nodeid=ABRAAEAABAADAAQ&nodepath=/ROOT/ABR/ABRAAE/ABRAAEAAB/ABRAAEAABAAD/ABRAAEAABAADAAQ&level=5&haschildren=&populated=false&title=42-4-314.+Automobile+emissions+control+systems+-+tampering+-+operation+of+vehicle&config=014FJAAyNGJkY2Y4Zi1mNjgyLTRkN2YtYmE4OS03NTYzNzYzOTg0OGEKAFBvZENhdGFsb2d592qv2Kywlf8caKqYROP5&pddocfullpath=/shared/document/statutes-legislation/urn:contentItem:5TYF-BSS0-004D-120N-00008-00&ecomp=-_579kk&prid=707b8f20-ef9e-49e9-8e32-c1b74dd43e3a|archive-date=February 3, 2019|title=Colorado Revised Statutes 42-4-314|via=LexisNexis|access-date=February 2, 2019|url-status=dead}}

No person shall operate a motor vehicle in a manner that causes a visual exhibition of smoke that consists of the release of soot, smoke or other particulate emissions to the air and onto roadways, other motor vehicles, bicyclists or pedestrians, with the intent to (a) cause a reasonable person to feel harassed, annoyed or alarmed, (b) obstruct or obscure any person's view of the roadway, other users of the roadway or a traffic control device, or (c) create a hazard to a motor vehicle operator, bicyclist or pedestrian.{{Cite law|type=AN ACT PROHIBITING THE PRACTICE OF "ROLLING COAL".|index=Subsection (a) of section 14-164c|date=May 3, 2017|legislature=Connecticut General Assembly|url=https://cga.ct.gov/2017/fc/2017HB-06975-R000714-FC.htm}}

"The engine and power mechanism of a motor vehicle must be equipped and adjusted so as to prevent escape of excessive fumes or smoke."{{Cite web|url=http://iga.in.gov/legislative/laws/2018/ic/titles/009|title=Indiana Code 2018 - Indiana General Assembly, 2019 Session|publisher=Indiana General Assembly|access-date=February 2, 2019}}

Vehicles must be equipped and adjusted to prevent the escape of excessive fumes or smoke.{{Cite web|url=http://www.kslegislature.org/li_2020/b2019_20/statute/008_000_0000_chapter/008_017_0000_article/008_017_0039_section/008_017_0039_k|title=Kansas Statutes 2019–2020 session|access-date=April 23, 2022}}

A person may not knowingly or intentionally cause a diesel-powered motor vehicle to discharge clearly visible smoke, soot, or other exhaust emissions onto another person or motor vehicle. Normal operations, commercial vehicles of 10,000 pounds or more, and construction site vehicles are exempt.{{Cite web|url=https://mgaleg.maryland.gov/mgawebsite/laws/StatuteText?article=gtr§ion=21-1131&enactments=false|title=Maryland Code – Transportation, §21–1131|publisher=Maryland General Assembly|access-date=February 2, 2019}}

"No person operating a diesel-powered vehicle shall intentionally release significant quantities of soot, smoke, or other particulate emissions into the air, onto roadways or other vehicles in a manner that obstructs or obscures another person's view of the roadway, other users of the roadway, or a traffic control device or otherwise creates a hazard to a driver."{{Cite web |title=Bill H.1698 |url=https://malegislature.gov/Bills/193/H1698/ |access-date=2024-01-03 |website=malegislature.gov}}

No person shall retrofit any diesel-powered vehicle with any device, smoke stack (i.e., hood stack or bed stack), or other equipment which enhances the vehicle's capacity to emit soot, smoke, or other particulate emissions, or shall purposely release significant quantities of soot, smoke, or other particulate emissions into the air and onto roadways and other vehicles while operating the vehicle, colloquially referred to as "coal rolling."{{Cite journal|url=

https://lis.njleg.state.nj.us/nxt/gateway.dll?f=templates&fn=default.htm&vid=Publish:10.1048/Enu|title=N.J. Legislative Statutes|website=New Jersey Legislative Statutes|doi=|access-date=February 2, 2019}}

New Jersey Department of Environmental Protection regulations also prohibit "smoking vehicles", and the department has a reporting hotline.{{Cite web|url=https://www.nj.gov/dep/bmvim/bmvim_smoking.htm|title=NJDEP Diesel Inspection & Maintenance – Idling & Smoking Vehicles|publisher=State of New Jersey|access-date=February 2, 2019}}

In 2016, a question to the Western North Carolina Air Quality Director about "rolling coal" referenced state law.{{Cite web|url=https://www.citizen-times.com/story/news/local/2016/06/07/answer-man-rolling-coal-legal-school-zone-speeding/85545616/|title=Answer Man: Is 'rolling coal' legal? School zone speeding?|website=Citizen Times|access-date=February 2, 2019}} Vehicles driven on a highway must have equipment to prevent "annoying smoke and smoke screens."{{Cite web|url=https://www.ncleg.net/EnactedLegislation/Statutes/HTML/BySection/Chapter_20/GS_20-128.html|title=§ 20-128. Exhaust system and emissions control devices|publisher=North Carolina General Assembly|access-date=February 2, 2019}} During any mode of operation, diesel-powered vehicles cannot emit for longer than five consecutive seconds visible contaminants darker than a specific density.{{Cite web|url=https://law.onecle.com/north-carolina/20-motor-vehicles/20-128.1.html|title=North Carolina General Statutes § 20-128.1 Control of visible emissions – Legal Research|via=Onecle |access-date=February 2, 2019}}

The Texas Commission on Environmental Quality (TCEQ) decommissioned its state-wide smoking vehicle reporting program.{{r|TCEQ_SmokingVehicleProgram}} Reports on smoking vehicles can still be made through the North Central Texas Regional Smoking Vehicle Program in the Dallas–Fort Worth area, which includes Collin, Dallas, Denton, Ellis, Erath, Hood, Hunt, Johnson, Kaufman, Navarro, Palo Pinto, Parker, Rockwall, Somervell, Tarrant, and Wise counties.{{r|NCTCOG_RegionalSmokingVehicleProgram}}

The Department of Motor Vehicles may suspend or revoke a vehicle's registration if notified by a local health department that the vehicle is unable to meet state or local air emissions standards.{{Cite web|url=https://le.utah.gov/xcode/Title41/Chapter1A/41-1a-S110.html?v=C41-1a-S110_2015051220150512|title=Authority of division to suspend or revoke registration, certificate of title, license plate, or permit|publisher=Utah Legislature|access-date=February 2, 2019}} Except during warmup or heavy tow, or for vehicles with a gross vehicle weight greater than 26,000 pounds, a diesel engine may not emit visible contaminants during operation if manufactured after 2007, or may not emit contaminants greater than a specific density if manufactured before 2008.{{Cite web|url=https://le.utah.gov/xcode/Title41/Chapter6A/41-6a-S1626.html?v=C41-6a-S1626_2016051020160510%27|title=41-6a-1626. Mufflers -- Prevention of noise, smoke, and fumes -- Air pollution control devices|publisher=Utah Legislature|access-date=February 2, 2019}}

An incident of coal rolling on a cyclist was captured on camera in August 2018 and referred to the Kane County attorney.{{Cite web|url=https://www.bicycling.com/news/a22864724/roll-coal-cyclist/|title=Caught on Camera: Truck Driver 'Rolls Coal' on Cyclist|last=Bevilacqua|first=Matt|date=August 29, 2018|website=Bicycling|access-date=February 2, 2019}} In March 2020, cast members of the Utah-based Diesel Brothers reality television series, and the companies they own, were fined a total of {{US$|850000}} for Clean Air Act violations.{{cite news |first=Mark |last=Shenenfelt |title=Judge hits Diesel Brothers with $848,000 in penalties for air pollution violations |date=2020-03-09 |url=https://www.standard.net/news/environment/judge-hits-diesel-brothers-with-in-penalties-for-air-pollution/article_e58c8bc1-5c7f-50cf-8a50-d42042387caa.html |location=Ogden, Utah |newspaper=Standard-Examiner |access-date=March 10, 2020 |archive-date=2021-04-19 |archive-url=https://web.archive.org/web/20210419084654/https://www.standard.net/news/environment/judge-hits-diesel-brothers-with-in-penalties-for-air-pollution/article_e58c8bc1-5c7f-50cf-8a50-d42042387caa.html |url-status=dead }}

It shall be unlawful for any person to engage in a nuisance exhibition of motor vehicle exhaust, which is the knowing release of soot, smoke, or other particulate emissions from a motor vehicle with a gross vehicle weight rating of 14,000 pounds or less into the air and onto roadways, other motor vehicles, bicyclists, or pedestrians, in a manner that obstructs or obscures another person's view of the roadway, other users of the roadways, or a traffic control device or otherwise creates a hazard to a driver, bicyclist, or pedestrian. The ordinance, which was passed in September 2017, exempts several categories of vehicles, and provides for a fine up to {{US$|499}}.{{Cite web|url=https://library.municode.com/co/hudson/codes/municipal_code?nodeId=CD_CH8VETR_ART1MOTRCOOTTRPAVI_S8-9.6NUEXMOVEEX|title=Municode Library|website=library.municode.com|access-date=February 2, 2019}}

The engine and power mechanism of every motor vehicle shall be so equipped and adjusted as to prevent the escape of excessive fumes or smoke.{{Cite web|url=http://online.encodeplus.com/regs/overlandpark-ks/doc-viewer.aspx#secid-3267|title=Overland Park Traffic Ordinance. Noise Prevention; Mufflers.|website=online.encodeplus.com|access-date=February 2, 2019}}{{Cite web|url=http://oppdchief.blogspot.com/2014/07/blowing-smoke.html|archive-url=https://web.archive.org/web/20140815124125/http://oppdchief.blogspot.com/2014/07/blowing-smoke.html|url-status=dead|archive-date=August 15, 2014|title=The Overland Park Police Department: Blowing Smoke|last=Department|first=Overland Park Police|date=July 16, 2014|website=The Overland Park Police Department|access-date=February 2, 2019}}

These counties have "smoking vehicle" report forms online.{{Cite web|url=https://deq.utah.gov/air-quality/county-smoking-vehicle-reporting-program-contacts-mobile-sources-and-transportation-program |title=County Smoking Vehicle Reporting Program Contacts: Mobile Sources and Transportation Program |date=20 June 2019 |publisher=Utah Department of Environmental Quality |access-date=2021-01-16}}

A person shall not engage in a nuisance exhibition of motor vehicle exhaust, which is the knowing release of soot, smoke, or other particulate emissions from a motor vehicle with a gross vehicle weight rating of fourteen thousand (14,000) pounds or less into the air and onto roadways, other motor vehicles, bicyclists, or pedestrians, in a manner that obstructs or obscures another person's view of the roadway, other users of the roadway, or a traffic control device, or otherwise creates a hazard to a driver, bicyclist, or pedestrian.{{Cite web|url=https://library.municode.com/wy/cheyenne/codes/code_of_ordinances?nodeId=TIT10VETR_CH10.24RUROGE_10.24.180NUEXMOVEEXRO|title=Nuisance exhibition of motor vehicle exhaust—Prohibited.|website=library.municode.com|access-date=February 2, 2019}} The ordinance, which was passed in July 2017, exempts several categories of vehicles and provides for a fine of up to {{US$|750}} and up to six months in jail.{{r|Greenwald_2017}} A first attempt in July 2016 failed,{{r|Greenwald_2017}} but Cheyenne police had clarified at that time that they had been writing tickets for coal rolling under state law.{{r|Greenwald_2017}}

"A person who contravenes this section commits an offence and is liable on conviction to a fine of not less than {{CAD|50}} and not more than {{CAD|5000}}."

Section 75.1 of the Ontario Highway Traffic Act prohibits modifications to a vehicle's emissions systems to increase emissions output exceeding that of the manufacturer's specifications, and modifications which tamper a vehicle’s emission control system to bypass, disable or otherwise negate it. Furthermore, Regulation 169/22 restricts the opacity of vehicle emissions and modifications to a vehicle's emissions system. Violations can result in a fine ranging from {{CAD|300}} to {{CAD|1000}} for non-commercial vehicles, and {{CAD|400}} to {{CAD|20000}} for commercial vehicles.{{r|1990HighwayTrafficAct}}{{r|OR_169/22}}

• Wet stacking, a term for when diesel engines exhaust unburned fuel, whether unintentionally or as part of rolling coal
• Combustion vehicle ban
• Diesel exhaust fluid

{{Reflist|2|refs=

{{cite news | last1 = Grenoble | first1 = Ryan | date = 2014-07-11 | title = Political Protest Or Just Blowing Smoke? Anti-Environmentalists Are Now 'Rolling Coal' | url = https://www.huffpost.com/entry/rolling-coal-photos-video_n_5561477 | url-status = live | work = HuffPost | language = en-us | archive-url = https://web.archive.org/web/20230815174953/https://www.huffpost.com/entry/rolling-coal-photos-video_n_5561477 | archive-date = 2023-08-15 | access-date = 2023-10-13 | quote = Anti-environmentalists have found a new medium for exhausting their anger: exhaust. Literally. [...] Some truck enthusiasts are intentionally producing copious amounts of diesel exhaust, spewing black smoke into the air as a form of political protest. It's called "rolling coal." | df = dmy-all}}

{{cite news | last1 = Greenwald | first1 = Joy | date = 2017-07-24 | title = Cheyenne Council OKs Anti-Rolling Coal Ordinance | url = https://kgab.com/cheyenne-council-oks-anti-rolling-coal-ordinance/ | url-status = live | work = KGAB | language = en-us | archive-url = https://web.archive.org/web/20220319060719/https://kgab.com/cheyenne-council-oks-anti-rolling-coal-ordinance/ | archive-date = 2022-03-19 | access-date = 2023-10-13 | quote = Councilman Rocky Case has a message for diesel truck owners who "roll coal" on Cheyenne's streets, "We're not going to tolerate it anymore." [...] State statute already lets police hit offenders with $100 fines, but the Cheyenne City Council voted 8 to 1 Monday night to put the law on the city books, making it a misdemeanor punishable by up to six months in jail and a $750 fine. | df = dmy-all}}

{{cite web | url = https://www.tceq.texas.gov/airquality/mobilesource/vetech/smokingvehicles.html | title = Smoking Vehicle Program | author = | date = 2023-02-22 | website = Texas Commission on Environmental Quality | language = en-us | access-date = 2023-10-13 | url-status = live | archive-url = https://web.archive.org/web/20230331222349/https://www.tceq.texas.gov/airquality/mobilesource/vetech/smokingvehicles.html | archive-date = 2023-03-31 | quote = TCEQ has decommissioned its smoking vehicle program. | df = dmy-all}}

{{cite web | url = https://www.nctcog.org/trans/quality/air/for-everyone/hevp/rsvp | title = Regional Smoking Vehicle Program | last1 = Moffa | first1 = Anthony | last2 = Brown | first2 = Jason | last3 = Klaus | first3 = Chris | date = n.d. | website = North Central Texas Council of Governments | language = en-us | access-date = 2023-10-13 | url-status = live | archive-url = https://web.archive.org/web/20230925103915/https://www.nctcog.org/trans/quality/air/for-everyone/hevp/rsvp | archive-date = 2023-09-25 | quote = Implementation Region [...] The North Central Texas region encompasses Collin, Dallas, Denton, Ellis, Erath, Hood, Hunt, Johnson, Kaufman, Navarro, Palo Pinto, Parker, Rockwall, Somervell, Tarrant, and Wise counties. | df = dmy-all}}

{{cite act | type = Act | index = BILL M 232 | date = 2017 | article = | article-type = | legislature = 2017 Legislative Session: 6th Session, 40th Parliament | title = BILL M 232 – 2017 MOTOR VEHICLE AMENDMENT ACT, 2017 | script-title = | trans-title = | page = | url = https://www.bclaws.gov.bc.ca/civix/document/id/lc/billsprevious/6th40th:m232-1 | language = en-ca | access-date = 2023-10-13 }}

{{Cite canlaw | short title = Highway Traffic Act | abbr = R.S.O. | year = 1990 | chapter = H.8 | section = 75.1 | subsection = | wikilink = Highway Traffic Act | link = https://www.ontario.ca/laws/statute/90h08 | linkloc = Government of Ontario | language = en-ca }}

{{Cite canlaw |type=reg |regtitle=Vehicle Emissions |regnumber=O. Reg. 169/22 | link = https://www.ontario.ca/laws/regulation/r22169 | language = en-ca }}

}}

{{Commons category}}

• {{Cite web|work=Diesel Technology Forum|id=Statement from the diesel industry criticising the practice|date=July 17, 2014|title=Diesel Technology Forum Statement on "Rolling Coal"|url=http://www.dieselforum.org/index.cfm?objectid=C5742487-0DF1-11E4-9F38000C296BA163|access-date=August 5, 2014|archive-date=August 8, 2014|archive-url=https://web.archive.org/web/20140808055011/http://www.dieselforum.org/index.cfm?objectid=C5742487-0DF1-11E4-9F38000C296BA163|url-status=dead}}
• {{cite news |last1=Bell |first1=Lucas |title=The EPA Is Hunting Performance Shops and Diesel Tuners Are to Blame |url=https://www.roadandtrack.com/news/a42156955/you-can-blame-diesel-tuners-for-waking-the-epa/ |access-date=12 December 2022 |agency=Road and Track |publisher=Hearst Digital Media |date=7 Dec 2022}}

Category:Air pollution

Category:Environmental skepticism

Category:Vehicle modification

Category:Environmental crime

Category:Exhaust systems

Category:Hazardous motor vehicle activities

Category:Automotive terminology

Category:Waste of resources