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Local Guidelines for Implementing the <br />California Environmental Quality Act (2019) TYPES OF EIRS <br /> <br />(a) Substantial changes are proposed in the project which will require major revisions of a <br />previous EIR due to the identification of new significant environmental effects or a <br />substantial increase in the severity of previously identified significant effects; <br />(b) Substantial changes occur with respect to the circumstances under which the project is to <br />be undertaken which will require major revisions of a previous EIR due to the <br />identification of new significant environmental effects or a substantial increase in the <br />severity of previously identified significant effects; or <br />(c) New information, which was not known and could not have been known with the <br />exercise of reasonable diligence at the time the previous EIR was certified as complete or <br />the Negative Declaration/Mitigated Negative Declaration was adopted, becomes <br />available and shows any of the following: <br />(1) the project will have one or more significant effects not discussed in a previous <br />EIR, Negative Declaration, or Mitigated Negative Declaration; <br />(2) significant effects previously examined will be substantially more severe than <br />shown in a previous EIR; <br />(3) mitigation measures or alternatives previously found not to be feasible are in fact <br />feasible and would substantially reduce one or more significant effects, but the <br />project proponent declines to adopt the mitigation measures or alternatives; or <br />(4) mitigation measures or alternatives which were not considered in a previous EIR <br />would substantially lessen one or more significant effects on the environment, but <br />the project proponent declines to adopt the mitigation measures or alternatives. <br />A Subsequent EIR must receive the same circulation and review as the previous EIR <br />received. <br />In instances where the City is evaluating a modification or revision to an existing use <br />permit, the City may consider only those environmental impacts related to the changes between <br />what was allowed under the old permit and what is requested under the new permit. Only if <br />these differential impacts fall within the categories described above may the City require <br />additional environmental review. <br />When the City is considering approval of a development project that is consistent with a <br />general plan for which an EIR was completed, another EIR is required only if the project causes <br />environmental effects peculiar to the parcel which were not addressed in the prior EIR or <br />substantial new information shows the effects peculiar to the parcel will be more significant than <br />described in the prior EIR. <br />8.05 S UPPLEMENTAL EIR. <br />The City may choose to prepare a Supplemental EIR, rather than a Subsequent EIR, if <br />any of the conditions described in Local Guidelines Section 8.04 have occurred but only minor <br />additions or changes would be necessary to make the previous EIR adequately apply to the <br />project in the changed situation. To assist the City in making this determination, the decision- <br />making body should request an Initial Study and/or a recommendation by Staff. The <br /> <br />2019 City of Santa Ana Local Guidelines 8-3 ©Best Best & Krieger LLP <br /> <br />