23 CFR § 774.3 - Section 4(f) approvals.
(a) The Administration determines that:
(b) The Administration determines that the use of the property, including any measure(s) to minimize harm (such as any avoidance, minimization, mitigation, or enhancement measures) committed to by the applicant, will have a de minimis impact, as defined in § 774.17, on the property.
(c) If the analysis in paragraph (a)(1) of this section concludes that there is no feasible and prudent avoidance alternative, then the Administration may approve, from among the remaining alternatives that use Section 4(f) property, only the alternative that:
(1) Causes the least overall harm in light of the statute's preservation purpose. The least overall harm is determined by balancing the following factors:
(i) The ability to mitigate adverse impacts to each Section 4(f) property (including any measures that result in benefits to the property);
(ii) The relative severity of the remaining harm, after mitigation, to the protected activities, attributes, or features that qualify each Section 4(f) property for protection;
(iii) The relative significance of each Section 4(f) property;
(iv) The views of the official(s) with jurisdiction over each Section 4(f) property;
(v) The degree to which each alternative meets the purpose and need for the project;
(vi) After reasonable mitigation, the magnitude of any adverse impacts to resources not protected by Section 4(f); and
(vii) Substantial differences in costs among the alternatives.
(d) Programmatic Section 4(f) evaluations are a time-saving procedural alternative to preparing individual Section 4(f) evaluations under paragraph (a) of this section for certain minor uses of Section 4(f) property. Programmatic Section 4(f) evaluations are developed by the Administration based on experience with a specific set of conditions that includes project type, degree of use and impact, and evaluation of avoidance alternatives. 1 An approved programmatic Section 4(f) evaluation may be relied upon to cover a particular project only if the specific conditions in the programmatic evaluation are met
1 FHWA Section 4(f) Programmatic Evaluations can be found at www.environment.fhwa.dot.gov/4f/4fnationwideevals.asp.
(1) The determination whether a programmatic Section 4(f) evaluation applies to the use of a specific Section 4(f) property shall be documented as specified in the applicable programmatic Section 4(f) evaluation.
(2) The Administration may develop additional programmatic Section 4(f) evaluations. Proposed new or revised programmatic Section 4(f) evaluations will be coordinated with the Department of Interior, Department of Agriculture, and Department of Housing and Urban Development, and published in the Federal Register for comment prior to being finalized. New or revised programmatic Section 4(f) evaluations shall be reviewed for legal sufficiency and approved by the Headquarters Office of the Administration.
(e) The coordination requirements in § 774.5 must be completed before the Administration may make Section 4(f) approvals under this section. Requirements for the documentation and timing of Section 4(f) approvals are located in §§ 774.7 and 774.9, respectively.