NEPA review. Upon finalization, a federal agency must make available comments and responses received/rendered on the Draft within 30 days of issuing the Final Conformity Determination. 

## 8.1.4. FAA Guidance 

As a means of adding clarity to the General Conformity process, t he FAA (in cooperation with the EPA) has published guidance on the topic. This document is entitled and summarized follows: 

• General Conformity Guidance for Airports: Questions and Answers. 104 

Using a question and answer format, this document provides information on the General Conformity Rule, its interpretation and application as it pertains projects/actions. 

## 8.2. Transportation Conformity 

Another component of the Conformity Rule is called Transportation Conformity. Transportation Conformity applies to "regionally-significant" highway or transit projects that are developed, funded, or approved by the FHWA or FTA in nonattainment and maintenance areas. 105 A "regionally significant" project is a transportation project serving regional transportation needs and would normally be included in the modeling of a metropolitan area’s transportation network. 

In the case of an airport, these regionally-significant roadway or transit projects outside the airport boundary will likely require Transportation Conformity analysis . This is most directly accomplished by demonstrating that these projects are included in the regional emissions analysis for a transportation plan or TIP. 

