Unnecessary noise: what the law bans and until what hour

It is a 1940 law, amended several times, that remains the general standard for unnecessary noise in Puerto Rico. What makes it useful today is precisely that it does not define noise by a number but by its effect: a sound can be unlawful for being loud, disturbing, intense and frequent to the point of proving intolerable in light of the totality of the circumstances. That means the hour, the frequency and the setting count as much as the volume. The law itself clarifies that it does not exempt anyone from complying with applicable environmental policy laws and regulations, or from any permit requirement before the Planning Board, the Permits Management Office or a municipality under the Autonomous Municipalities Act.

Anyone affected by unnecessary noise. The law creates no citizen complaint procedure and imposes no personal requirements: it describes a general prohibition and a penalty. It does set express exemptions: drivers of ambulances and fire engines are exempt while rendering the service appropriate to the nature of those vehicles; and noise produced by church bells in the exercise of their functions and religious worship shall not be understood to be unnecessary noise, nor shall the noise generated by the worship or rites of duly established churches, sects or religious denominations.

• That the sound be loud, disturbing, intense and frequent, and that in light of the totality of the circumstances it prove intolerable, affecting tranquility and peaceful living.Verified against the official source
• That it not fall under an express exemption: ambulances and fire engines in service, church bells, and worship or rites of duly established denominations.Verified against the official source

• A record of the pattern: the legal definition requires the sound to be frequent, so a log of dates and times weighs more than a single incident.
• If the noise comes from a vehicle whose mechanism was altered to produce it, note that: the law sets a higher fine for that case.

1. 1

   Step 1: Measure the problem against the definition, not against a decibel

   Section 2 defines unnecessary noise as any loud, disturbing, intense and frequent sound that, in light of the totality of the circumstances, proves intolerable, affecting tranquility and peaceful living. Note the four words: loud, disturbing, intense and frequent. Frequency is in the definition, so documenting that it happens over and over is part of the proof, not a detail.

2. 2

   Step 2: If it is a radio, the rule is very concrete

   Section 3 leaves little room: the volume of radios must not be so high that it is heard from the street, or in such a way as to bother neighbours. These are two independent criteria, and the first is easy to check: if it is heard from the street, it is already outside what the law allows. Jukeboxes have their own rule: their volume must be considerably reduced so their operation does not disturb the public.

3. 3

   Step 3: If it is a business closing after midnight

   The same section imposes a structural requirement: businesses or discos using sound equipment or offering live music will be required to have air conditioning or walls with the necessary fittings capable of minimizing noise in the rooms of the premises designated for that purpose, when their operation ends after twelve midnight (12:00 a.m.). It is not a ban on operating at night: it is a requirement to condition the premises.

4. 4

   Step 4: Remember there are other layers of regulation

   The law clarifies it itself: that requirement does not exempt compliance with applicable environmental policy laws and regulations, or any other permitting requirement before the Planning Board, the Permits Management Office or a municipality under the Autonomous Municipalities Act. And it adds that nothing provided shall limit the Environmental Quality Board’s powers to issue the regulations it is authorized by law to issue. If you are looking for a decibel limit, it is in that environmental regulation or in your municipality’s ordinance, not in this law.

5. 5

   Step 5: Know which fine applies

   The Court of First Instance shall hear violations of this law, and they shall be considered misdemeanors, carrying a fine of no less than one hundred (100) dollars and no more than two hundred (200) dollars. There is a named aggravating case: when a motor vehicle’s normal mechanism has been altered for the purpose of producing noise, the fine shall be no less than two hundred (200) dollars and no more than five hundred (500) dollars.

6. 6

   Step 6: For fireworks, the hours are in the law

   Section 6 authorizes Puerto Rico’s municipalities and the Capital Government to regulate the use of rockets and firecrackers from eight in the morning until ten at night. And it adds the part people forget: outside these hours the use of such rockets and firecrackers is prohibited. That is, the municipal power operates within that window; outside it, the prohibition comes from the law itself.

The law creates no agency and no form: it provides that the Court of First Instance shall hear violations, treated as misdemeanors. In practice the first contact is usually the Police Bureau or your municipality’s permits or ordinance office, because the law itself recognizes municipal regulation under the Autonomous Municipalities Act and permit requirements before the Planning Board and the Permits Management Office. If the noise comes from a source also subject to environmental regulation, that is a separate and additional route.

• Looking for a decibel limit in this law: it has none, the standard is one of effect.
• Claiming over an isolated incident, when the legal definition requires the sound to be frequent.
• Forgetting the concrete radio rule: it must not be heard from the street or bother neighbours.
• Assuming a business cannot operate past midnight, when what the law requires is conditioning the premises.
• Claiming against church bells or religious worship of established denominations, which are exempt.
• Claiming against an ambulance or fire engine in service, also exempt.
• Ignoring the municipal ordinance and environmental regulation, which the law itself recognizes as additional layers.
• Setting off fireworks outside the 8:00 a.m. to 10:00 p.m. window, prohibited by the law itself.

These are the government pages this guide is based on.

• Policía de Puerto Rico

  Policía de PR

  bvirtualogp.pr.gov

• Puerto Rico Police Bureau

  Policía

  policia.pr.gov