A method for automatically adjusting control parameters of a transport refrigeration system (12, 200), the TRS (12, 200) comprising a transport refrigeration unit including a control unit (214, 240), a TRS genset including a power generator, a positioning device for sending real-time location and time information of the TRS to the control unit (214, 240), and an emission control mechanism, the method comprising: determining, via the control unit (214, 240), geographic data by comparing a real-time location and time information of the TRS received from the positioning device with predefined geographic region data, wherein the geographic data includes geographic region data of where the TRS (12, 200) is physically located and time data indicating a current time of day where the TRS (12, 200) is physically located; determining, via the control unit (214, 240) of the TRS, a set of control parameters for the power generator of the TRS (12, 200) correlated to the geographic data and time data; and running, via the control unit (214, 240), the power generator of the TRS (12, 200) based on the set of control parameters, wherein the predefined geographic region data includes one or more noise or emission requirements for a particular location and time, characterized in that the method further comprises obtaining a preset operation mode, via the control unit (214, 240), based on the set of control parameters correlated to both the current location and the current time, wherein the preset operation mode is one of: a high speed lockout operation mode, a low speed lockout operation mode, a maximum/minimum power limit mode, a mode that includes the control unit activating an emission-control mechanism to reduce emissions of the power generator of the TRS (12, 200) without lowering a horsepower of the power generator, and a mode that includes the control unit stopping operation of the power generator of the TRS (12, 200). determining, via the control unit (214, 240), geographic data by comparing a real-time location and time information of the TRS received from the positioning device with predefined geographic region data, wherein the geographic data includes geographic region data of where the TRS (12, 200) is physically located and time data indicating a current time of day where the TRS (12, 200) is physically located; determining, via the control unit (214, 240) of the TRS, a set of control parameters for the power generator of the TRS (12, 200) correlated to the geographic data and time data; and running, via the control unit (214, 240), the power generator of the TRS (12, 200) based on the set of control parameters, wherein the predefined geographic region data includes one or more noise or emission requirements for a particular location and time, characterized in that the method further comprises obtaining a preset operation mode, via the control unit (214, 240), based on the set of control parameters correlated to both the current location and the current time, wherein the preset operation mode is one of: a high speed lockout operation mode, a low speed lockout operation mode, a maximum/minimum power limit mode, a mode that includes the control unit activating an emission-control mechanism to reduce emissions of the power generator of the TRS (12, 200) without lowering a horsepower of the power generator, and a mode that includes the control unit stopping operation of the power generator of the TRS (12, 200). a high speed lockout operation mode, a low speed lockout operation mode, a maximum/minimum power limit mode, a mode that includes the control unit activating an emission-control mechanism to reduce emissions of the power generator of the TRS (12, 200) without lowering a horsepower of the power generator, and a mode that includes the control unit stopping operation of the power generator of the TRS (12, 200).