L - Liter
LAA - Lead Agency Attorney
LABELS - Region 3 Mail Labels System
LABPROP - Laboratory Property Management System
LADD - Lifetime Average Daily Dose
LADD - Lowest Acceptable Daily Dose
LAER - Lowest Achievable Emission Rate
LAI - Laboratory Audit Inspection
LAMP - Lake Acidification Mitigation Project
LAMS - Lake Analysis Management System
LAN - Local Area Network
LAO - Local Area Operations
LAO - Local Area Office
LAP - Laboratory Analytical Protocol
lb - pound
lbs/hr - pounds per hour
LB - Laboratory
LBAU - Lab automation System
LBI - Limited Background Investigation
LBV - Low Band Video
LC - Lethal Concentration
LC - Liquid Chromatography
LCA - Life Cycle Assessment
LCCA - Lead Contamination Control Act
LCD - Local Climatological Data
LCD - Local Climatological data annual summary with comparative data
LCL - Lower Control Limit
LCM - Life Cycle Management
LCRS - Leachate Collection and Removal System
LCS - Laboratory Computer System
LCS - Laboratory Control Sample
LD - Land Disposal
LD - Lethal Dose
LD - Light Duty
LD50 - Median Lethal Dose (i.e., dosage of a toxic substance which kills 50% of the test animals)
LD LO - Lowest Dosage of a Toxic Substance that Kills Test Organisms
LDAR - Leak Detection and Repair
LDC - London Dumping Convention
LDCRS - Leachate Detection, Collection and Removal System
LDD - Light Duty Diesel
LDDT - Light Duty Diesel Truck
LDDV - Light Duty Diesel Vehicle
LDEQ - Louisana Department of Environmental Quality
LDGT - Light Duty Gasoline Truck
LDIP - Laboratory Data Integrity Program
LDMS - Region 2 Lab Data Management System
LDPE - Low Density Polyethylene
LDPHDN - Lead Additive Report for refineries and Inporters and Manufactiring
LDR - Land Disposal Restrictions
LDRRDDB - Land Disposal Restrictions Rule Development
LDRTF - Land Disposal Restrictions Task Force
LDS - Leak Detection System
LDS - Light Duty Vehicle/Truck Certification
LDSFE - Fuel Economy
LDT - Light Duty Truck
LDT - Lowest Dose Tested
LDV - Light Duty Vehicle
LEA - Local Enforcement Agency
LEL - Lower Explosive Limit
LEL - Lower Exposure Limit
LEL - Lowest Effect Level
LEP - Laboratory Evaluation Program
LEPC - Local Emergency Planning Committee
LEPD - Legal Enforcement Policy Division
LERC - Local Emergency Response Committee
LEV - Low Emissions Vehicle
LEVEL8(A) - TSCA 8(a) Level A Information System
LFG - Landfill Gas
LFL - Lower Flammability Limit
LGP - Low Ground Pressure
LGR - Local Governments Reimbursement Program
LHDDV - Light Heavy Duty Diesel Vehicle
LHMA - Labeling of Hazardous Materials Act
LHW - Liquid Hazardous Waste
L&I - License and Inspection
LI - Langelier Index
LIBBKS - Headquarters Book System
LIBR - Reasearch Triangle Park Library
LIDAR - Light Detection and Ranging
LIFO - Last In / First Out
LIMB - Limestone-Injection Multi-Stage Burner
LIQ - Liquid
LIRAQ - Livermore Regional Air Quality Model
LISTS - Locator and Information Tracking System
LITS - Litigation Support System
LLEXT - Liquid Liquid or Solvent Extraction
LLRW - Low Level Radioactive Waste
LLRWPA - Low Level Radioactive Waste Policy Act
LMF - Logical Mainframe
LMFBR - Liquid Metal Fast Breeder Reactor
LMOP - Landfill Methane Outreach Program
LMR - Labor Management Relations
LNAPL - Lighter than Water Non-aqueous Phase Liquid
LNEP - Low Noise Emission Product
LNG - Liquefied Natural Gas
LNRD - Land and Natural resources Division
LOAEL - Lowest Observed Adverse Effect Level
LOC - Library of Congress
LOC-TFCS - Letter of Credit, Dept. of Treasury Financial Communications System
LOCATOR - Mail Locator
LOD - Limit of Detection
LOE - Level of Effort
LOEL - Lowest Observed Effect Level
LOIS - Loss of Interim Status
LONGZ - Long Term Terrain Model
LOOK-UP - On-line Account Status and payment History
LOQ - Level of Quantification
LOQ - Limit of Quantitation
LP - Legislative Proposal
LPG - Liquefied Petroleum Gas
LQER - Lesser Quantity Emission Rates
LQG - Large Quantity Generator
LRMS - Low Resolution Mass Spectroscopy
LRO - Labor Relations Officier
LRTAP - Long Range Transboundary Air Pollution
LRTP - Long Range Transportation Plan
LSD - NEIC Laboratory Services Division
LSC - Laboratory Services Coordination
LSI - Legal Support Inspection
LSL - Lump Sum Leave
LST - Low-Solvent Technology
LT - Lifetime
LTA - Lead Trial Attorney
LTC - Long-Term Concentration
LTD - Land Treatment Demonstration
LTHE - Low Temperature Heat Exchanger
LTL - Less than Truckload Quantity
LTO - Landing Takeoff Cycle
LTOP - Lease to Purchase
LTR - Lead Technical Representative
LTRL - Long Term Remediation List (formerly the NPL)
LTU - Land Treatment Unit
LUCIFER - Listing of Organic Compounds Identified in Region 4
LUFT - Leaking Underground Fuel Tank
LUIS - Label Use Information System
LUST - Leaking Underground Storage Tank
LVE - Low Volume Exemption
LVM - Low Volatility Metals
LVS - Laboratory Ventilation Data System
LWA - Light Weight Aggregate
LWAK - Light Weight Aggregate Kiln
LWCF - Land and Water Conservation Fund
LWOP - Lease with Option to Purchase
LWOP - Leave without Pay
LZ - Landing Zone
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