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• Designated Representative (DR) The DR is the individual who is responsible for submitting annual GHG reports and other information on behalf of the owners and operators of the facility/supplier. Every facility or supplier must have one DR. The DR is identified on the Certificate of Representation. Every facility/supplier must submit a complete Certificate of Representation by January 30th, 2011. After EPA reviews the appointment of the DR, the DR must log into e-GGRT to accept his or her appointment. The DR may then appoint (or confirm the appointment of) an ADR and one or more Agents, who can act on behalf of the DR. The DR will confirm these actions by signing an electronic Certificate of Representation (for an ADR) or Notice of Delegation (for an Agent). If the facility/supplier is required to report emissions data under 40 CFR 75, e.g. Clean Air Interstate Rule, the DR registered in e-GGRT must be the same as the individual who has been appointed as DR under 40 CFR 75. Every facility or supplier must have one DR.

• Alternate Designated Representative (ADR) The ADR is an individual who is appointed by the DR to act on his/her behalf. This is optional. A facility or supplier may have one ADR. If the facility/supplier is required to report annual GHG reports under 40 CFR 75, the ADR registered in e-GGRT must be the same individual who has been appointed as ADR under 40 CFR 75. After EPA reviews the appointment of the ADR, the ADR must log into e-GGRT to accept his/her appointment. The ADR may then appoint (or confirm the appointment of) one or more Agents who can act on his/her behalf. This is optional. A facility or supplier may have one ADR.

• Agent An Agent is an individual to whom the DR or ADR has delegated responsibility for submitting annual GHG reports for the facility/supplier. This is optional. A facility or supplier may have many Agents. After the EPA approves the DR/ADR's appointment of an Agent, the Agent must log in to e-GGRT to accept his/her appointment. Following the Agent's acceptance, the DR/ADR must then log in to e-GGRT to sign an electronic Notice of Delegation confirming his/her appointment of the Agent. This is optional. A facility or supplier may have many Agents.

• Registrar A Registrar is an individual who sets up one or more facilities or suppliers and sends invitations to the DR, ADR or Agent(s). The Registrar is optional. The Registrar role is for the sole purpose of registering a facility or supplier in e-GGRT. The Registrar does not gain access to facility data, cannot edit the facility profile or enter data for annual GHG reports.

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