# Clear Zones (CZ) and Accident Potential Zones (APZ)

## Checklist for HUD or Responsible Entity

+-------------------+-----------------------------+--------------------+
| **General         | **Legislation**             | ##### Regulation   |
| requirements**    |                             |                    |
+-------------------+-----------------------------+--------------------+
| Promote           | Section 2 of the Housing    | 24 CFR Part 51     |
| compatible land   | Act of 1949 as amended, 42  | Subpart D          |
| uses around civil | U.S.C 1331, affirmed by     |                    |
| airports and      | Section 2 of the Housing    | 32 CFR Part 256    |
| military          | and Urban Development Act   |                    |
| airfields         | of 1969, P.L. No 90-448;    |                    |
|                   | Section 7(d) of the Dept    |                    |
|                   | HUD Act of 1965, 42 U.S.C.  |                    |
|                   | 3535 (d).                   |                    |
+-------------------+-----------------------------+--------------------+

1\. Is the Project located within 2,500 feet of a civil airport or
within 15,000 feet of a military airfield?

+-----------------------------------------------------------------------+
| > Maintain in your ERR a map that identifies airports. The            |
| > regulations only apply to military and civil primary and commercial |
| > service airports. The Federal Aviation Administration updates the   |
| > list of applicable airports annually:                               |
| > http://www.faa.gov/airports_air                                     |
| traffic/airports/planning_capacity/passenger_allcargo_stats/passenger |
+-----------------------------------------------------------------------+

No: STOP here. The project is not within a Clear Zone (also known as
Runway Protection Zone) or Accident Potential Zone. Record your
determination.

Yes: PROCEED to \#**2**

2.  Is the Project in the CZ or APZ?

+-----------------------------------------------------------------------+
| > Contact the airport operator and obtain written documentation of    |
| > the Clear Zone (also known as Runway Protection Zone) and for       |
| > military airfields, the Accident Potential Zone, and a              |
| > determination of whether your project is in the APZ or CZ.          |
+-----------------------------------------------------------------------+

No: STOP here. Record your determination that the project is not in a CZ
or APZ.

Yes: PROCEED TO #3

3.  **For Civil and Military Airports, is the activity for new
    construction, major rehabilitation\*, or any other activity which
    significantly prolongs the physical or economic life of existing
    facilities?**

> **For Accident Potential Zones at Military Airfields, does the project
> change the use of a facility so that it becomes one which is no longer
> acceptable in accordance with Department of Defense standards (Please
> see 32 CFR Part 256 for *Land Use Compatibility Guidelines for
> Accident Potential Zones*), significantly increase the density or
> number of people at the site, or introduces explosive, flammable or
> toxic materials to the area?**

No: STOP here. The project is not subject to the regulations. Record
your determination.

Yes: PROCEED to #4

4.  **Will the project frequently be used or occupied by people?**

**Yes: [The project cannot be assisted with HUD funds. STOP
HERE.]{.underline}**

No: Obtain written assurance from the airport operator to the effect
that there are no plans to purchase the land involved with the project
as a portion of a Runway Clear Zone or Clear Zone acquisition program.
Maintain copies of all of the documents you have used to make your
determination

\* Rehabilitation is major when the estimated cost of the work is 75% or
more of the total estimated cost of replacement after rehab (Please see
24 CFR 58.35(a) for complete definition of major rehabilitation
thresholds.)