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Displaying 61 - 75 of 126 results
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When I Click on Produce Summary Report Following an Emission Rates Run, Why Do I Get An Error Message that says "Database Error Occurred Trying to Produce Report Header Table"?
See More Frequent Questions about MOVES and Related Models . The Summary Reporter does not work when you choose the Emission Rate calculation in the Scale panel. It only works with the Inventory calculation selection. The emission rates that you generated are found in the RatePerDistance, RatePerProfile and RatePerVehicle tables…
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How Do I Create my Own I/M Program Input Table Using the "Create Template" Option?
See More Frequent Questions about MOVES and Related Models . If you already have an I/M program in your area, you should always begin by exporting the default I/M program in MOVES, reviewing it, making any changes to the default program, and re-importing it, rather than trying to fill a…
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How does MOVES Classify Light-Duty Trucks?
See More Frequent Questions about MOVES and Related Models . There are two definitions used in MOVES for light duty trucks. The source use type light duty trucks (sourceTypeID values of 31 or 32) use the Federal Highway Administration (FHWA) VM-1 definition of light duty vehicles used to report vehicle…
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Aggregating a substance located in multiple processes
Under 40 CFR Part 68, if multiple processes at a stationary source contain the same regulated substance, must the amounts of the substance in the individual processes be aggregated to determine whether a threshold is exceeded? No. Applicability of the risk management program requirements is based upon the presence of…
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Where Can I Find Default HPMSBaseYearVMT Values for a Specific County?
See More Frequent Questions about MOVES and Related Models . MOVES does calculate default values for VMT for each calendar year for each county. Since these values are calculated, they are not found in any table in the default database. If you wish to obtain the default estimates, you will…
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NFPA 4 Criteria
A stationary source has a mixture above the threshold. At standard temperature and pressure, the mixture does not meet the criteria for a National Fire Protection Association flammability rating of 4 (NFPA 4). At elevated temperatures and pressures, however, the mixture meets the NFPA 4 criteria. Is this process covered…
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Why Are There No Emissions for the Early and Late Hours of the Day for Certain Source Types?
See More Frequent Questions about MOVES and Related Models . MOVES has no start emissions for the certain source types in certain hours of the day. While we know that a non-zero number of these source types do start late at night, our activity data on these trucks and buses…
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Why Does the "hourvmtfraction" Table in the MOVES Default Database Include Fractions for roadTypeID 1 (off-network)?
See More Frequent Questions about MOVES and Related Models . The original concept for MOVES assumed that there would be some vehicle miles traveled (VMT) not accounted for in the other four road types. This remaining VMT would be accounted for in roadTypeID=1. As the model developed, it was decided…
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How Can I Incorporate Local Data Into My MOVES-Nonroad Run?
See More Frequent Questions about MOVES and Related Models . We recommend not modifying the internal tables of the MOVES-Nonroad model to incorporate local data, as this can lead to unintended consequences. Instead, you can apply local activity and population data by: Executing a nonroad run in Inventory mode for…
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Can Programs Other Than Microsoft Excel be Used to Edit Input Database Files?
See More Frequent Questions about MOVES and Related Models . Yes. In addition to MS Excel files, in the County Data Manager/Project Data Manager, MOVES can read in other file types using ASCII text and comma separated variables.
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What Should I Do About this Warning: "Warning: A Work File Failed. Calculations will be Retried. No data has been lost."?
See More Frequent Questions about MOVES and Related Models . This is just a warning message not an error message so there is nothing to fix. This is a internal timing issue when the MOVES worker tries to access a file and there is a lock on it. This lock…
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Can the partial pressure exemption be applied to formaldehyde solutions?
Formaldehyde is not specifically listed with a concentration cutoff, but is listed with the qualifier "solution". Can the partial pressure exemption be applied to formaldehyde solutions? According to 40 CFR §68.115, the amount of any listed toxic substance present in a mixture at a concentration greater than 1% does not…
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Ammonia used as agricultural nutrient held by farmers and the general duty clause
Does the exemption at 40 CFR 68.125 for "ammonia used as an agricultural nutrient, when held by farmers" apply to the CAA Section 112(r)(1) general duty clause? No. The exemption for ammonia held by farmers for use as fertilizer applies only to the provisions of the risk management program regulations…
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Applicability for a process at a facility connected to another facility by piping
The definition of process would seem to say that my process is part of the larger company’s process because they are interconnected. Why can’t the larger company just include my process in its RMP? Your process is not part of the larger company’s stationary source because it does not meet…
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Is methane generated on site and used for fuel subject to Part 68?
A wastewater treatment plant generates methane through a natural digestion process, then stores and uses the methane as fuel. Under 40 CFR Part 68, must the owner or operator of this stationary source evaluate the amount of methane to determine whether more than a threshold amount is present in any…
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