Question E1B11:
[97.15] What does PRB-1 require of state and local regulations affecting amateur radio antenna size and structures?  

Choices:  
A: No limitations may be placed on antenna size or placement  
B: Reasonable accommodations of amateur radio must be made  
C: Such structures must be permitted when use for emergency communications can be demonstrated  
D: Such structures must be permitted if certified by a registered professional engineer    

Correct Answer is  B: Reasonable accommodations of amateur radio must be made  

Correct Answer: B — Reasonable accommodations of amateur radio must be made

1) Why B is correct
- FCC PRB-1 (reflected in 47 CFR §97.15(b)) preempts state and local regulations to the extent that they must:
  - Provide “reasonable accommodation” for amateur radio communications, and
  - Be the “minimum practicable regulation” to accomplish a legitimate local purpose (e.g., safety, aesthetics).
- This means local governments can regulate, but they must work with hams to allow effective antennas.

2) Why the other choices are incorrect
- A: “No limitations” is too strong. PRB-1 does not prohibit all local regulation; safety, structural, and aesthetic rules are allowed if reasonably accommodating and minimally restrictive.
- C: PRB-1 is not limited to emergency communications. It protects the amateur service broadly, including routine operation.
- D: PRB-1 does not require PE certification. Some building codes may require engineering for structures, but that’s not a PRB-1 mandate and doesn’t replace the “reasonable accommodation/minimum practicable regulation” standard.

3) Useful rules of thumb
- Key phrases to remember: “reasonable accommodation” and “minimum practicable regulation.”
- PRB-1 applies to state and local governments (zoning/land-use), not to private covenants/HOA CC&Rs.
- If you face restrictions, propose alternatives that still allow effective communication and document how they meet the locality’s legitimate objectives with minimal impact.