Unique_ID           - unique identification number for each inspection
Report_Number       - Unique report number of the inspection
Report_State        - State abbreviation that indicates the state the inspector is from.  'US' mean federal inspectors.
DOT_Number          - Unique number assigned to a company by the DOT
Insp_Date           - the date of the inspection
Insp_level_ID	    - ID that indicates the level of inspection: 1 - Full, 2 - Walk-around, 3 - Driver-Only, 4 - special study, 5 - Terminal, 6 - Radioactive Materials
County_code_State   - State abbreviation that indicates where the inspection occurred
Time_Weight         - Time weight of the inspection
Driver_OOS_Total    - Number of Out-Of-Service violations related to Driver
Vehicle_OOS_Total   - Number of Out-Of-Service violations related to vehicle 
Total_Hazmat_Sent   - Number of violations related to Hazardous Materials
OOS_Total           - Total number of Out-Of-Service violations
Hazmat_OOS_Total    - Total number of Out-Of-Service violations related to Hazardous Materials
Hazmat_Placard_req  - 'Y' mean the hazmat placard required 
Unit_Type_Desc      - Description of the type of the main unit 
Unit_Make           - Description of the make of the main unit
Unit_License        - License plate of the main unit
Unit_License_State  - License state of the main unit
VIN                 - Vehicle Identification Number of the main unit
Unit_Decal_Number   - Decal number of the main unit
Unit_Type_Desc2     - Description of the type of the secondary unit 
Unit_Make2          - Description of the make of the secondary unit
Unit_License2       - License plate of the secondary unit
Unit_License_State2 - License state of the secondary unit
VIN2                - Vehicle Identification Number of the secondary unit
Unit_Decal_Number2  - Decal number of the secondary unit
Unsafe_Insp         - 'Y' mean the inspection identified as relevent Unsafe Driving BASIC inspection 
Fatigued_Insp       - 'Y' mean the inspection identified as relevent Hours-of-Service Compliance BASIC inspection
Dr_Fitness_Insp     - 'Y' mean the inspection identified as relevent Driver Fitness BASIC inspection
Subt_Alcohol_Insp   - 'Y' mean the inspection identified as relevent Controlled Substances/Alcohol BASIC inspection
Vh_Maint_Insp       - 'Y' mean the inspection identified as relevent Vehicle Maintenance BASIC inspection
HM_Insp             - 'Y' mean the inspection identified as relevent Hazardous Materials Compliance BASIC inspection
BASIC_Viol          - Total number of BASIC violations
Unsafe_Viol         - Number of Unsafe Driving BASIC violations 
Fatigued_Viol       - Number of Hours-of-Service Compliance BASIC violations 
Dr_Fitness_Viol     - Number of Driver Fitness BASIC violations 
Subt_Alcohol_Viol   - Number of Controlled Substances/Alcohol BASIC violations 
Vh_Maint_Viol       - Number of Vehicle Maintenance BASIC violations 
HM_Viol             - Number of Hazardous Materials Compliance BASIC violations