7 NREL Changelog 
Version date: 2021-05-13 
 
Table name changes: 
 
    commercial_main.csv renamed to survey_com_main. 
    residential_households.csv renamed to survey_res_household. 
    residential_main.csv renamed to survey_res_main. 
    commercial_currentvehs.csv renamed to survey_com_currentveh. 
    survey_com_vehchoice.csv renamed to survey_com_vehchoice. 
    survey_res_vehchoice.csv renamed to survey_res_vehchoice. 
    residential_currentvehs.csv renamed to survey_res_currentveh. 

Column name changes: 
 
    parent_id renamed to sampno. 
    d16_vehmake renamed to veh_make. 
    d16_vehmakeoth renamed to veh_make_oth. 
    r_vehmodel renamed to veh_model. 
    d16_modelyear renamed to veh_year. 
    vehmake renamed to veh_make. 
    vehmodel renamed to veh_model. 
    modelyear renamed to veh_year. 
    replace_make renamed to replace_veh_make. 
    additional_make renamed to additional_veh_make. 
    alt1_models renamed to alt1_veh_model. 
    alt2_models renamed to alt2_veh_model. 
    alt3_models renamed to alt3_veh_model. 
    alt4_models renamed to alt4_veh_model. 
    zip renamed to zipcode. 

Column redactions: 
 
    alt2_models
    alt4_models
    veh_model
    age
    c06_biztype
    d16_make
    veh_make
    alt1_models
    veh_make_oth
    alt3_models
    r_vehmodel

Column additions: 
 
    age_nrel_agebin
