Supplementary Regulations
For Lots With a Width of: | |||||
|---|---|---|---|---|---|
At Least or More Than (feet) | Less Than (feet) | Minimum Side Yard (feet) | Total of Both Side Yards (feet) | ||
For one-family residence in: | |||||
RA-60 | 100 | 125 | 20 | 45 | |
RA-40 | 100 | 125 | 20 | 45 | |
RA-25 | 75 | 100 | 15 | 40 | |
RA-9 | 50 | 75 | 8 | 20 | |
RA-5 | -- | 50 | 5 | 13 | |
RB | -- | 50 | 5 | 13 | |
For two-family residences in: | |||||
RB | 50 | 75 | 8 | 20 | |
Acetylides | |
Ammonium nitrates | |
Anhydrous hydrazine | |
Azides | |
Black powder | |
Blasting gelatin | |
Chlorates | |
Cyclonite or hexogene (cyclotrimethylenetrinitramine) | |
Dinitroresorcinol | |
Dinitrotoluene | |
Dinol | |
Dynamite | |
Fireworks | |
Fulminates | |
Greek fire | |
Guanidine nitrate | |
Gun cotton (cellulose nitrate with nitrogen content in excess of 12.2% or pyroxylin) | |
Hexamine (hexamethylenetetramine) | |
Nitroglycerin | |
Perchlorates (when mixed with carbonaceous materials) | |
Permanganates | |
Peroxides (except hydrogen peroxide in concentrations of 35% or less in aqueous solution) | |
PETN (pentaerythritol tetranitrate) | |
Petryl [2-(N,2,4,6 -- tetranitroaniline) ethanol nitrate] | |
Picric acid | |
Tetryl (N-methyl - N,2,4,6 - tetranitroaniline) | |
TNT (trinitrotoluene) |
TABLE I Maximum Permissible Sound-Pressure Levels at Specified Points of Measurement for Noise Radiated Continuously From a Facility Between the Hours of 7:00 p.m. and 7:00 a.m. | ||
|---|---|---|
Frequency Ranges Containing Standard Octave Bands (cycles per second) | Octave Band Sound Pressure Level (decibels re 0.0002 dyne/em) | |
20 - 75 | 67 | |
75 - 150 | 66 | |
150 - 300 | 61 | |
300 - 600 | 54 | |
600 - 1,200 | 47 | |
1,200 - 2,400 | 39 | |
2,400 - 4,800 | 29 | |
4,800 - 10,000 | 20 | |
If the noise is not smooth and continuous and/or is not radiated between the hours of 7:00 p.m. and 7:00 a.m., one or more of the corrections in Table II below shall be added to or subtracted from each of the decibel levels given above in Table I. |
TABLE II | ||
|---|---|---|
Type of Operation or Character of Noise | Correction (decibels) | |
Daytime operation only | +5 | |
Noise source operates less than 20% of any one- hour period | +5* | |
Noise source operates less than 5% of any one-hour period | +10* | |
Noise of impulsive character (hammering, etc.) | -5 | |
Noise of periodic character (hum, screech, etc.) | -5 | |
*NOTE: Apply one of these corrections only. | ||
Dwelling Unit | Minimum Gross Floor Area (square feet) |
|---|---|
Efficiency | 450 |
1-bedroom | 675 |
2-bedroom | 750 |
3-bedroom | 1,000 (including at least 1.5 baths) |
4-bedroom | 1,200 (including at least 1.5 baths) |
Number of Bedrooms | Number of Persons |
|---|---|
Efficiency | Minimum: 1; maximum: 1 |
1-bedroom | Minimum: 1; maximum: 3 |
2-bedroom | Minimum: 2; maximum: 5 |
3-bedroom | Minimum: 3; maximum: 7 |
4-bedroom | Minimum: 4; maximum: 9 |
Supplementary Regulations
For Lots With a Width of: | |||||
|---|---|---|---|---|---|
At Least or More Than (feet) | Less Than (feet) | Minimum Side Yard (feet) | Total of Both Side Yards (feet) | ||
For one-family residence in: | |||||
RA-60 | 100 | 125 | 20 | 45 | |
RA-40 | 100 | 125 | 20 | 45 | |
RA-25 | 75 | 100 | 15 | 40 | |
RA-9 | 50 | 75 | 8 | 20 | |
RA-5 | -- | 50 | 5 | 13 | |
RB | -- | 50 | 5 | 13 | |
For two-family residences in: | |||||
RB | 50 | 75 | 8 | 20 | |
Acetylides | |
Ammonium nitrates | |
Anhydrous hydrazine | |
Azides | |
Black powder | |
Blasting gelatin | |
Chlorates | |
Cyclonite or hexogene (cyclotrimethylenetrinitramine) | |
Dinitroresorcinol | |
Dinitrotoluene | |
Dinol | |
Dynamite | |
Fireworks | |
Fulminates | |
Greek fire | |
Guanidine nitrate | |
Gun cotton (cellulose nitrate with nitrogen content in excess of 12.2% or pyroxylin) | |
Hexamine (hexamethylenetetramine) | |
Nitroglycerin | |
Perchlorates (when mixed with carbonaceous materials) | |
Permanganates | |
Peroxides (except hydrogen peroxide in concentrations of 35% or less in aqueous solution) | |
PETN (pentaerythritol tetranitrate) | |
Petryl [2-(N,2,4,6 -- tetranitroaniline) ethanol nitrate] | |
Picric acid | |
Tetryl (N-methyl - N,2,4,6 - tetranitroaniline) | |
TNT (trinitrotoluene) |
TABLE I Maximum Permissible Sound-Pressure Levels at Specified Points of Measurement for Noise Radiated Continuously From a Facility Between the Hours of 7:00 p.m. and 7:00 a.m. | ||
|---|---|---|
Frequency Ranges Containing Standard Octave Bands (cycles per second) | Octave Band Sound Pressure Level (decibels re 0.0002 dyne/em) | |
20 - 75 | 67 | |
75 - 150 | 66 | |
150 - 300 | 61 | |
300 - 600 | 54 | |
600 - 1,200 | 47 | |
1,200 - 2,400 | 39 | |
2,400 - 4,800 | 29 | |
4,800 - 10,000 | 20 | |
If the noise is not smooth and continuous and/or is not radiated between the hours of 7:00 p.m. and 7:00 a.m., one or more of the corrections in Table II below shall be added to or subtracted from each of the decibel levels given above in Table I. |
TABLE II | ||
|---|---|---|
Type of Operation or Character of Noise | Correction (decibels) | |
Daytime operation only | +5 | |
Noise source operates less than 20% of any one- hour period | +5* | |
Noise source operates less than 5% of any one-hour period | +10* | |
Noise of impulsive character (hammering, etc.) | -5 | |
Noise of periodic character (hum, screech, etc.) | -5 | |
*NOTE: Apply one of these corrections only. | ||
Dwelling Unit | Minimum Gross Floor Area (square feet) |
|---|---|
Efficiency | 450 |
1-bedroom | 675 |
2-bedroom | 750 |
3-bedroom | 1,000 (including at least 1.5 baths) |
4-bedroom | 1,200 (including at least 1.5 baths) |
Number of Bedrooms | Number of Persons |
|---|---|
Efficiency | Minimum: 1; maximum: 1 |
1-bedroom | Minimum: 1; maximum: 3 |
2-bedroom | Minimum: 2; maximum: 5 |
3-bedroom | Minimum: 3; maximum: 7 |
4-bedroom | Minimum: 4; maximum: 9 |