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• Northeast States Planning New Analysis of California Standards - "NESCAUM" States Will Investigate Feasibility of Adopting "Low Emission Vehicle" Standards

• CARB Tightens Regulation Allowing Refiners to Demonstrate Equivalence with Low Aromatic Diesel Fuel

• CARB Adopts Regulation to Control Emissions From Lawn and Garden Equipment

• CARB Staff Proposes Changes to "Clean Fuels" Regulations

• CARB Staff Updates Mobile Source Plan - Regulation Development Efforts Announced for Off-Road Motorcycle Standards and Transportation Control Measures

February 1991 – [Top Page]

• EPA Assistant Administrator for Enforcement James Strock Replaces Jananne Sharpless as California's Head Environmental Regulator - Sharpless Appointed Full-Time ARB Chair

• California I/M Review Committee to Seek Flexibility Regarding $450 Repair Expenditure Provisions of New Clean Air Act Amendments - Committee Also Decides to Study Cost of Converting to Centralized I/M

• CARB Staff Proposes Emission Standards for Off-Highway Vehicles and Equipment ó40 HP - Proposed Standards Would Cover Golf Carts, Snowmobiles(!), Portable Generators, As Well As Agricultural and Construction Equipment Pre-empted by Clean Air Act Amendments

• Details Remain Fuzzy After Another CARB Workshop on Transportation Control Measures

• Legislation Update

• Rulemaking Calendar Update - Ten Vehicle-Related Items Listed On CARB Rulemaking Calendar for 1991

March 1991 – [Top Page]

• CARB Staff Tells Board It Does Not Expect New Federal Clean Air Act to Significantly Affect California - However, Cleaner 49-State Cars Will Reduce Emissions in California Also (page 1)

• Board Members Receive Overview of 1991 Rulemaking Calendar (page 4)

• Board Members Receive Staff Briefing on "Advances in Low Emission Vehicle Technology" (page 6)

• San Bernardino County Supervisor Barbara Riordan Replaces John Cefalu as Board Member (page 8)

• Legislation Update - New Bill Attempts to Limit Inspection Fee for Smog Check Program (page 8)

April 1991 – [Top Page]

• CARB Staff Provides Additional Warning to Manufacturers Regarding "Off-Cycle" Emissions - New Study Shows Some Vehicles Have 100-Fold Increase in CO Emissions During Hard Accelerations (page 1)

• CARB Staff Announces That Registration-Enforced Recalls Are Scheduled to Begin in August - Department of Motor Vehicles Will Be Sending Thousands of Vehicle Owners to New Car Dealers (page 5)

• EPA Receives Lukewarm Reception from California I/M Review Committee Regarding EPA Staff Push For Addition of Transient, Loaded Mode Testing and Functional Evap System Checks to California I/M Program (page 7)

• CARB Holds Workshop With Utility, Lawn, & Garden Engine Makers In Preparation for Upcoming Certification Program (page 10)

• Legislation Update (page 11)

• Rulemaking Calendar Update (page 21)

May 1991 – [Top Page]

• Conference on Reactivity Adjustment Factors Uncovers Potential Problems with CARB's Regulations - Airshed Model Results Indicate Current CARB Approach May Result in Improper Ranking of Different Fuels (page 1)

• Further Discussion of Reactivity Adjustment Factors Occurs at "Public Consultation Meeting" on Reactivity Adjustment Factors (page 11)

• Legislation Update - "Drive Plus" Bill Runs Into Trouble (page 18)

• Rulemaking Calendar Update (page 30)

June 1991 – [Top Page]

• CARB Staff Seeks Further Enhancements to On-Board Diagnostic (OBD) System Requirements (page 1)

• Board Adopts Administrative Hearing Procedures for Roadside Smoke Inspection Program - Trucking Industry Threatens Flood of Appeals (page 8)

• Board Adopts Guidance Documents on Transportation Control Measures - High Occupancy Vehicle Lanes Receive CARB Blessing Despite Dispute Over Long-Term Benefits (page 16)

• I/M Review Committee Meeting Hears Update on Evaluation of Smog Check Program - Compliance With 25% Reduction Target Appears Questionable (page 26)

• Legislation Update (page 29)

• Rulemaking Calendar Update (page 39)

July 1991 – [Top Page]

• Fuels-Related Issues Dominate CARB's Agenda:

• Workshop Held on "Phase 2" Reformulated Gasoline - CARB Staff Proposes Long List of Proposed Specifications Without Supporting Analysis of Cost or Effectiveness (page 1)

• Reactivity Adjustment Factors Discussed at "Public Meeting" - Uncertainty Regarding Accuracy of "Maximum Incremental Reactivity" Method Continues as Deadline for Adoption of Method Approaches (page 5)

• CARB Staff Proposes Procedures for Certification of "Substitute Clean Fuels" - Substantial Vehicle Testing Program Proposed to Obtain Approval of New Fuels (page 9)

• CARB Staff Proposes Further Changes to On-Board Diagnostic Regulations - Staff Delays EPA Recommended Requirement to Predict Catalyst Efficiency on FTP (page 14)

• Legislation Update (page 16)

• Rulemaking Calendar Update (page 24)

August 1991 – [Top Page]

• I/M Review Committee Encouraged to Support Remote Sensing By L.A. County District Attorney - $500 Fine for First Offense Proposed if Tampering is Detected - Committee's Report to Legislature Suggests California May Need to Consider Centralized I/M (page 1)

• Further Changes to Reactivity Adjustment Scheme Discussed at CARB Workshop - Adoption Remains on Schedule Despite Concerns about Validity and Accuracy of Proposed Technique (page 4)

• CARB Staff Proposes Revised Procedures for Alternative Fuel Retrofits to Reduce the Risk of Emissions Increases (page 9)

• Legislation Update (page 15)

• Rulemaking Calendar Update (page 23)

September 1991 – [Top Page]

• CARB Staff Embraces ARCO Specifications for "EC-X" Reformulated Gasoline at Workshop (page 1)

• Latest Reactivity Adjustment Protocol Indicates CARB Will Adopt Maximum Incremental Reactivity Scheme Despite Concerns Regarding Its Validity (page 8)

• CARB Staff Proposes Further Revisions to OBD II Requirements -- Hearing Set for September 12 (page 9)

• CARB/DMV Begin Program Requiring Compliance With Emission Recalls as Condition of Registration Renewal -- Manufacturers Required to Report VINs of Uncorrected Vehicles After Six Months (page 10)

• CARB Cracks Down on Sales of California Emissions Labels (page 11)

• CARB Report Proposes Control of Locomotive Emissions through Fuel Specification Changes and Retrofit of Old Engines -- Formal Proposal Expected Fall 1992 (page 12)

• Legislation Update (page 14)

• Rulemaking Calendar Update (page 22)

October 1991 – [Top Page]

• Board Adopts More Stringent On-Board Diagnostic System Requirements Despite Manufacturers' Concerns Regarding Technological Feasibility and Lead Time (page 1)

• Reactivity Adjustment Scheme Discussed at Workshop - CARB Staff Intends to Keep Adoption on Schedule Despite Technical Problems with Proposed Method (page 7)

• CARB Staff Proposes Revised Maximum Incremental Reactivity Scale and Reactivity Adjustment Factors for Transitional Low-Emission Vehicles (TLEVs) (page 14)

• Progress Report to I/M Review Committee on Evaluation of Smog Check Program Indicates Modest Emission Reductions Being Achieved - Committee Refuses to Endorse Legislative Proposal for Remote Sensing (page 18)

• Legislation Update (page 21)

• Rulemaking Calendar Update (page 27)

November 1991 – [Top Page]

• Final CARB Staff Proposal for Phase 2 Reformulated Gasoline Would Be Highest Cost Per Ton of Control Ever Adopted - Gasoline Prices Projected to Rise By Up to 28 Cents Per Gallon (page 1)

• CARB Staff Proposal for Alternative Fuel Specifications Would Allow Methanol to Contain More Sulfur Than Reformulated Gasoline (page 6)

• CARB Staff Presents Plan for Control of Marine Vessel Emissions - Performance Standards and Fuel Specifications Expected (page 9)

• I/M Program Update - Failure Rates Are Dropping With Use of New BAR 90 Analyzers (page 20)

• Legislation Update (page 22)

• Rulemaking Calendar Update (page 25)

December 1991 – [Top Page]

• CARB Adopts Phase 2 Reformulated Gasoline Requirements Expected to Increase Gasoline Prices by About 20› per Gallon Beginning in 1996 (page 1)

• After a Flurry of Last-Minute Changes, CARB Adopts Reactivity Adjustment Factor of 0.41 for Methanol-Fueled Vehicles - Testimony Challenges Validity of Maximum Incremental Reactivity (MIR) Approach (page 9)

• EPA Asks California I/M Review Committee to Switch to I/M 240 Test Regime - Systems Control Says Cost Can Be Held to $17 Per Test (page 14)

• CARB Staff Proposes Standards for Off-Road Diesel Engines - Proposed Control Level Similar to That For On-Road Engines (page 17)

• Annual Air Quality Trends Update - Vehicle-Related Peak Pollution Levels Lower in 1990 - Aberrant SO2 Level Recorded in South Central Coast Basin (page 21)

• Rulemaking Calendar Update (page 36)