FAA Part 150 Land-Use Reference

Return federal airport-noise compatibility context without replacing the full land-use table or local planning decision.

Description

Under 14 CFR Part 150 Appendix A, residential use is generally compatible below DNL 65 dB; determinations in higher bands depend on sound attenuation and local conditions.

Under 14 CFR Part 150 Appendix A, residential use is generally compatible below DNL 65 dB; determinations in higher bands depend on sound attenuation and local conditions. This reference explains the selected concept and the evidence needed to interpret it.^{[1, 2]}

The returned values include Source, Statement, Topic. The How section below explains the calculation, input rules and interpretation.

When to use FAA Part 150 Land-Use Reference

Use FAA Part 150 Land-Use Reference when you need to evaluate the supplied records under the calculation and evidence rules below. The federal table does not prevent a local government from adopting different land-use controls, and a contour is not an individual health-risk diagnosis. This is an introductory excerpt, not the complete standard, a current compliance check or a project-specific calculation.

Choose the measured quantities, units, weighting and measurement basis before entering values. For a reference, select the exact topic. For a catalog lookup, prepare complete source-backed records; for a screen, select an applicable caller limit.

How to use FAA Part 150 Land-Use Reference and understand its results

Choose the measured quantities, units, weighting and measurement basis before entering values. For a reference, select the exact topic. For a catalog lookup, prepare complete source-backed records; for a screen, select an applicable caller limit.
Enter topic using the field table and calculation rules, then run the tool.
Read source, statement, topic. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
topic	Reference topic to return.	string; one of "residential", "process", "caution"	Required

Choose one of the exact topic values in the table. The tool indexes a fixed, locally embedded reference entry and returns its source label, statement and unchanged topic. It does not fetch the source or update the wording. Topic meanings and all returned entries are shown below.

Selection	Returned reference entry
residential	source: 14 CFR Part 150 Appendix A, Table 1; statement: Under 14 CFR Part 150 Appendix A, residential use is generally compatible below DNL 65 dB; determinations in higher bands depend on sound attenuation and local conditions.; topic: residential
process	source: FAA Airport Noise Compatibility Planning; statement: Part 150 noise exposure maps and compatibility programs are voluntarily prepared by airport sponsors and reviewed by FAA.; topic: process
caution	source: 14 CFR Part 150 Appendix A; statement: The federal table does not prevent a local government from adopting different land-use controls, and a contour is not an individual health-risk diagnosis.; topic: caution

selected exact topic → embedded source label, explanatory statement and topic

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
source	Source used for the reference statement.	string
statement	Narrow reference statement for the selected topic.	string
topic	Selected reference topic.	string; one of "residential", "process", "caution"

json

{
  "input": {
    "topic": "residential"
  },
  "output": {
    "source": "14 CFR Part 150 Appendix A, Table 1",
    "statement": "Under 14 CFR Part 150 Appendix A, residential use is generally compatible below DNL 65 dB; determinations in higher bands depend on sound attenuation and local conditions.",
    "topic": "residential"
  }
}

Limitations and assumptions

The federal table does not prevent a local government from adopting different land-use controls, and a contour is not an individual health-risk diagnosis. This is an introductory excerpt, not the complete standard, a current compliance check or a project-specific calculation.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Extremely large text inputs are rejected. Missing fields without a declared default, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use DNL Segment Level Solver: Day-night average sound level (DNL) energetically combines 15 day hours and 9 night hours with a 10 dB night penalty. One segment can be solved when the other and total are known. For a complementary task, use HUD Noise Site Reference: HUD identifies sites at or below 65 dB day-night average sound level as acceptable for noise assessment purposes. This reference explains the selected concept and the evidence needed to interpret it.

Further background: History of FAA noise compatibility guidelines.

References

FAA Part 150 Land-Use Reference — tool.io
History of FAA noise compatibility guidelines — Federal Aviation Administration

Similar or alternative tools

DNL Segment Level Solver
Day-night average sound level (DNL) energetically combines 15 day hours and 9 night hours with a 10 dB night penalty. One segment can be solved when the other and total are known.
HUD Noise Site Reference
HUD identifies sites at or below 65 dB day-night average sound level as acceptable for noise assessment purposes. This reference explains the selected concept and the evidence needed to interpret it.