# Road signs in Puerto Rico

Road signs in Puerto Rico are regulated in the Manual de Rotulación para las Vías Públicas de Puerto Rico, Puerto Rico’s supplement to the Manual on Uniform Traffic Control Devices (MUTCD), the standard for road signs, signals, and markings in the United States. It is developed by the Puerto Rico Highways and Transportation Authority (PRHTA) "in substantial conformance to" the national MUTCD developed by the Federal Highway Administration.
The first edition of the Manual de Rotulación para las Vías Públicas de Puerto Rico was published in 1979. This manual was most recently updated in 2020. Puerto Rico is among the territories of the United States to have adopted the national MUTCD in conjunction with a supplemental volume. The inscriptions on road signs are written in Spanish since it is an official language of Puerto Rico and is most widely spoken in Puerto Rico.
The suffix (D) in parentheses means "right", from Spanish derecha, while the (I) in parentheses means "left", from Spanish izquierda.

## Regulatory signs

Regulatory signs give instructions to motorists, pedestrians, and cyclists. Signs including Stop, Yield, No Turns, No Trucks, No Parking, No Stopping, Minimum Speed, Right Turn Only, Do Not Enter, Weight Limit, and Speed Limit are considered regulatory signs. Some have special shapes, such as the octagon for the Stop sign.

### R1 series: Stop and yield

The MUTCD's R1 series is for Stop and Yield. Although the 4-WAY plaque (R1-3) was deprecated in the 2009 Edition of the MUTCD in favor of the ALL WAY plaque (R1-3P), the 4-VIAS plaque (R1-3) is still used in Puerto Rico.
* R1-1 Stop sign
* R1-2 Yield
* R1-3 4-Way (plaque)
* R1-5 (D) Yield here to pedestrians (right)
* R1-5 (I) Yield here to pedestrians (left)

### R2 series: Speed limit

The MUTCD's R2 series is for speed limit signs. Speed limits in the United States are always in miles per hour.
* R2-1 50 mph speed limit
* R2-2a 40 mph heavy vehicle speed limit
* R2-3 Electronic Toll Collection Speed Limit
* R2-4a Combined Speed Limit
* R2-6a End Speed Zone

### R3 series: Lane usage and turns

The MUTCD's R3 series of signs is for lane usage and turn signs.
* R3-1 No right turn
* R3-2 No left turn
* R3-3 No turns
* R3-4 No U-turn
* R3-5 (I) Left turn only
* R3-5 (D) Right turn only
* R3-5a Straight through only
* R3-6 (I) Optional movement lane control, straight through and left turn
* R3-6 (D) Optional movement lane control, straight through and right turn
* R3-7 (I) Left lane must turn left
* R3-7 (D) Right lane must turn right
* R3-8 Advance intersection lane control (two lanes)
* R3-8c Advance intersection lane control (two lanes)
* R3-9a Reversible lane control, use only X AM to X PM
* R3-9e Reversible lane control, use X AM to X PM, do not use in other hours
* R3-9f Reversible lane control, do not use X AM to X PM
* R3-10a Bus lane (post-mounted)
* R3-18 No U or left turn
* R3-29 Autoexpreso ETC vehicles only
* R3-31 Electronic toll collection only

### R4 series: Regulation of movement

The MUTCD's R4 series of signs is for the regulation of movement signs.
* R4-3 Slower traffic and trucks keep Right
* R4-7 Keep right
* R4-8 Keep left
* R4-9 Stay in lane
* R4-19 Keep right except to pass

### R5 series: Exclusionary

The MUTCD's R5 series of signs is for exclusionary signs. The most common of these signs is the do not enter sign.
* R5-1 Do not enter
* R5-1a Wrong way
* R5-1b Wrong way (cyclists)
* R5-2 No trucks
* R5-6 No bicycles
* R5-10a No pedestrians, bicycles

### R6 series: One way and divided highway

The MUTCD's R6 series of signs is for one way and divided highway signs. The most common of these signs is the One way (Transito) sign.
* R6-1 (D) One way
* R6-1 (I) One way
* R6-1a Two way
* R6-2 (D) One way, alternate
* R6-2 (I) One way, alternate
* R6-4 Chevron roundabout directional
* R6-4a Chevron roundabout (three chevrons)
* R6-4b Chevron roundabout (four chevrons)
* R6-5P Roundabout

### R7 series: Parking

The MUTCD allows for three types of parking signs: permissive, No Parking, and No Standing. However, in most states, there is an additional more restrictive one, No Stopping. These signs are found in the R7 series of signs in the MUTCD. Permissive parking signs allow for parking for either an unlimited or varied amount of time. They are often used in conjunction with parking meters and parking permits. They are specified by the MUTCD to be green on white. Local variations occur with additional information and slightly different designs. No Parking signs indicate that loading or unloading while temporarily stopped is permitted, but the driver must not leave the vicinity of the vehicle. Some No Parking signs display time restrictions, while others are permanent restrictions. There are also temporary versions of the signs, often of similar design to the permanent ones. These signs are specified by the MUTCD to be red on white, although local variations occur. No Standing signs indicate that stopping temporarily to load or unload passengers is allowed, but vehicles cannot be stopped at the location for longer periods of time, even if the driver remains with the vehicle. As with no parking signs, some restrictions displayed on the signs are permanent, and some are time-based.
* R7-1 No parking any time
* R7-2 No Parking X AM TO X PM
* R7-2a No Parking X AM TO X PM (alternative)
* R7-3 No parking except Sundays and Holidays
* R7-3a No parking except Sundays and Holidays (alternative)
* R7-3b No parking except Sundays and Holidays (alternative)
* R7-4 No standing any time
* R7-5 one hour parking time
* R7-6 No parking, loading zone
* R7-7 No parking, bus stop
* R7-8 Reserved parking (wheelchair)
* R7-8a Bus accessible (plaque)
* R7-10 No parking/loading zone X AM TO X PM
* R7-11 No parking X AM TO X PM/Loading zone X AM TO X PM
* R7-12 No parking/loading zone X AM TO X AM, X PM TO X PM
* R7-13 No parking X AM TO X PM/Jitneys X AM TO X PM
* R7-14 No parking, taxi stand
* R7-15 No parking, Jitney stand
* R7-16 No parking X AM TO X PM Jitney stand
* R7-17 No parking X AM TO X PM Bus Stop
* R7-107a No parking, bus stop
* R7-108 Two hour parking time
* R7-108a (D) Two hour parking time
* R7-108a (I) Two hour parking time
* R7-200 No parking on the left and one hour parking time on the right (combined)
* R7-201 Tow away zone
* R7-201a Tow away zone

### R8 series: Parking and emergency restrictions

The MUTCD's R8 series of signs is for parking restriction and emergency restriction signs.
* R8-3a No parking
* R8-4 Emergency parking only

### R9 series: Bicycles and pedestrians

The MUTCD's R9 series of signs is for bicycle and pedestrian signs.
* R9-3a No pedestrians
* R9-3b (D) Use crosswalk (plaque)
* R9-3b (I) Use crosswalk (plaque)
* R9-3b (PR) (I) Use bridge (plaque)
* R9-3b (PR) (D) Use bridge (plaque)
* R9-6a Yield to pedestrians
* R9-7 Shared-use path restriction

### R10 series: Traffic signal

The MUTCD's R10 series of signs is for traffic signal related signs.
* R10-6 Stop here on red
* R10-7 Do not block intersection
* R10-11 No turn on red
* R10-12 Left turn yield on green signal

### R11 series: Road closed

The MUTCD's R11 series of signs is for road closure-related signs.
* R11-2 Road closed
* R11-3 Street closed
* R11-3a Road closed - local traffic only
* R11-3b Bridge closed - local traffic only
* R11-3b (PR) Bridge closed - local traffic only
* R11-3c Bridge closed

### R12 series: Weight limits

The MUTCD's R12 series of signs is for weight limit-related signs.
* R12-1 Weight limit 10 tons
* R12-5 Weight limit
* R12-7 Emergency vehicle weight limit
* R12-7a Axle weight limit

### R14 series: Truck routes

The MUTCD's R14 series of signs is for truck route-related signs.
* R14-2 Hazardous material route
* R14-3 Hazardous material prohibited
* R14-4 National Network Route
* R14-5 National Network prohibited

### R16 series: Seat belts and headlight use

The MUTCD's R16 series of signs is for seat belt and headlight use-related signs.
* R16-1 Wear seat belt
* R16-1p Wear seat belt (text plate)
* R16-2 $1000 fine for littering

## Warning signs

Warning signs are found in the W series of the national MUTCD. They highlight existing conditions, such as a curve, school, dead end street, or traffic signal. They can also warn of possible danger such as bumps, bicycles, low flying aircraft, or emergency vehicles. They are either yellow or fluorescent yellow in color and, with a few exceptions, are usually diamond-shaped and sometimes have square or rectangular smaller signs or plaques associated with them. Most W series signs can also be found with orange backgrounds for temporary use in situations such as construction zones. Some of the temporary-use signs are for use only in temporary situations.

### W1 series: Horizontal alignment

The MUTCD's W1 series of signs is for warning signs relating to horizontal alignment.
* W1-1 (D) Turn right
* W1-1 (I) Turn left
* W1-1a (D) Turn right (25 mph speed limit)
* W1-1a (I) Turn left (25 mph speed limit)
* W1-2 Curve
* W1-2a (D) Curve right (35 mph speed limit)
* W1-3 (D) Reverse turn, first to the right
* W1-3 (I) Reverse turn, first to the left
* W1-4 (D) Reverse curve, first to the right
* W1-4 (I) Reverse curve, first to the right
* W1-5 (D) Winding road, first to the right
* W1-5 (I) Winding road, first to the left
* W1-6 (D) Arrow
* W1-6 (I) Arrow
* W1-7 Two-direction large arrow
* W1-8 (D) Right chevron
* W1-8 (I) Left chevron
* W1-10 (D) Curve right with side road
* W1-10 (I) Curve left with side road
* W1-11 (I) Hairpin curve to the left
* W1-11 (D) Hairpin curve to the right
* W1-13 Truck rollover warning
* W1-15 270 degree loop curve

### W2 series: Intersections

The MUTCD's W2 series of signs is for warning signs relating to intersections.
* W2-1 Crossroad
* W2-2 (D) Side road right
* W2-2 (I) Side road left
* W2-3 (D) Slanted side road right
* W2-3 (I) Slanted side road left
* W2-4 T-intersection
* W2-5 Y-intersection
* W2-6 Roundabout

### W3 series: Advance traffic control

The MUTCD's W3 series of signs is for warning signs relating to advance traffic controls. The MUTCD provides options for graphic and text signs.
* W3-1 Stop sign ahead
* W3-1a Stop sign ahead (plate, text only)
* W3-2 Yield sign ahead
* W3-2 Yield sign ahead (plate, text only)
* W3-3 Traffic lights ahead
* W3-3a Traffic lights ahead (text only)
* W3-5 Speed limit ahead

### W4 series: Lanes and merges

The MUTCD's W4 series of signs is for warning signs relating to lane merges and added lanes, as well as lane endings.
* W4-1 (D) Merge from the right
* W4-1 (I) Merge from the right
* W4-2 (D) Lane ends on the right
* W4-2 (I) Lane ends on the left
* W4-3 (D) Added right lane
* W4-3 (I) Added left lane
* W4-5 Merge (entering roadway)
* W4-6 Added right lane (entering roadway)

### W5 series: Road width restrictions

The MUTCD's W5 series of signs is for warning signs relating to road width restrictions.
* W5-1 Road narrows
* W5-2 Narrow bridge
* W5-3 One lane bridge
* W5-4 Path narrows

### W6 series: Divided highway

The MUTCD's W6 series of signs is for warning signs relating to divided highways.
* W6-1 Divided highway starts
* W6-2 Divided highway ends
* W6-3 Two-way traffic

### W7 series: Hills

The MUTCD's W7 series of signs is for warning signs relating to hills.
* W7-1 Steep grade/hill
* W7-3a Downhill next XX km
* W7-3b Test the brakes
* W7-4 Runaway truck ramp ahead
* W7-4b Runaway truck ramp (right)

### W8 series: Pavement and roadway conditions

The MUTCD's W8 series of signs is for warning signs relating to pavement and roadway conditions.
* W8-1 Bump
* W8-2 Dip
* W8-5 Slippery when wet ahead
* W8-6 Trucks crossing
* W8-6a Trucks entering and exiting
* W8-15p Motorcycles
* W8-16 Metal bridge deck
* W8-17 (D) Dangerous shoulder on the right
* W8-17 (I) Dangerous shoulder on the left
* W8-17p Uneven shoulder
* W8-18 Flood zone ahead
* W8-19 Flood gauge
* W8-25 Shoulder ends

### W11 series: Advance warnings

The MUTCD's W11 series of signs is for warning signs relating to advance warnings. The MUTCD allows use of a fluorescent yellow-green background color for signs relating to non-motorized vehicles crossing the road.
* W11-2 Pedestrians
* W11-4 Cattle
* W11-8 Emergency vehicle
* W11-8p Fire station (plate)
* W11-10 Truck
* W11-10p Truck crossing (plate)
* W11-11 Possibility of cattle on the run-in
* W11-15 Bicycle and pedestrians

### W12 series: Low Clearance Warnings

The MUTCD's W12 series of signs is for warning signs relating to low clearance.
* W12-1 Double arrow
* W12-2 Low clearance
* W12-2 Low clearance (metric)
* W12-2p Clearance advisory
* W12-2p Clearance advisory (metric)

### W13 series: Advisory speeds

The MUTCD's W13 series of signs is for warning signs relating to advisory speeds. Speed limits in the United States are always in miles per hour.
* W13-1 Speed advisory
* W13-2 Exit speed advisory

### W14 series: Dead end streets and no passing zones

The MUTCD's W14 series of signs is for warning signs relating to dead-end streets and no-passing zones. As all situations are not covered, several states and local governments have additional signs for other types of situations not covered by the MUTCD.
* W14-1 Dead end
* W14-2 No outlet
* W14-2a Road ends
* W14-3 No passing zone

### W15 series: Playgrounds

The MUTCD's W15 series of signs is for warning signs relating to playgrounds.
* W15-1 Playground

### W16 series: Supplemental plaques

The MUTCD's W16 series of signs is for supplemental plaques for warning signs.
* W16-2 XXX metres
* W16-2a XXX m
* W16-5p (D) Supplemental arrow to the right (plaque)
* W16-5p (I) Supplemental arrow to the left (plaque)
* W16-6p (D) Supplemental arrow to the right (plaque)
* W16-6p (I) Supplemental arrow to the left (plaque)
* W16-7p (D) Downward diagonal arrow to the right (plaque)
* W16-7p (I) Downward diagonal arrow to the left (plaque)
* W16-9p Ahead

### W17 series: Speed humps

The MUTCD's W17 series of signs is for warnings relating to speed humps.
* W17-1 Speed hump
* W17-2 Landslide
* W17-3a Grooved shoulder
* W17-3ap Grooved shoulder (plate)
* W17-3b Grooves in center
* W17-3bp Grooves in center (plate)

### Object markers

* OM-3 (D) Right object marker
* OM-3 (I) Left object marker

## Construction signs

* CW1-1 (D) Turn (right)
* CW1-1 (I) Turn (left)
* CW1-2 (D) Curve (right)
* CW1-2 (I) Curve (left)
* CW1-3 (D) Reverse turn (right)
* CW1-3 (I) Reverse turn (left)
* CW1-4 (D) Single lane shift (right)
* CW1-4 (I) Single lane shift (left)
* CW1-4b (D) Double lane shift (right)
* CW1-4b (I) Double lane shift (left)
* CW1-4c (D) Triple lane shift (right)
* CW1-4c (I) Triple lane shift (left)
* W1-6 (D) Arrow (right)
* W1-6 (I) Arrow (left)
* CW1-8 (D) Chevron (right)
* CW1-8 (I) Chevron (left)
* CW3-1 Stop sign ahead
* CW3-2 Yield sign ahead
* CW3-3 Traffic light ahead
* CW3-4 Be prepared to stop
* CW4-1 (D) Merge (right)
* CW4-1 (I) Merge (left)
* CW4-2 (D) Lane ends (right)
* CW4-2 (I) Lane ends (left)
* CW4-3 (D) Added right lane
* CW4-3 (I) Added left lane
* CW4-5 Merge (entering roadway)
* CW4-6 Added right lane (entering roadway)
* CW6-1 Divided highway begins
* CW6-2 Divided highway ends
* CW6-3 Two-way traffic
* CW7-1 Steep grade/hill
* CW8-5 Slippery when wet ahead
* CW8-17 (D) Right shoulder drop-off ahead
* CW9-3a Interior lane shift ahead
* CW12-1 Double arrow
* CW12-2 Low clearance
* CW12-2 Low clearance
* CW20-7a Flagger ahead (symbol sign)
* CW21-1a Workers (symbol sign)
* CW24-1 (D) Double reverse curve (right) (1 lane)
* CW24-1 (I) Double reverse curve (left) (1 lane)
* CW24-1a (D) Double reverse curve (right) (2 lanes)
* CW24-1a (I) Double reverse curve (left) (2 lanes)
* CW24-1b (D) Double reverse curve (right) (3 lanes)
* CW24-1b (I) Double reverse curve (left) (3 lanes)
* M4-8 Detour
* M4-8 End detour
* G20-1 Road under construction next XX kms
* G20-2 End construction
* G20-2a End road work
* G20-4 Pilot car follow me
* CW20-8 Slow
* R1-1 Stop
* CW3-4 Be prepared to stop
* M4-8 End detour

## Guide signs

* D1-1 Destination (1 line)
* D1-1a Destination and distance (1 line)
* D1-2 Destination (2 lines)
* D1-2a Destination and distance (2 lines)
* D1-2d Circular intersection destination (2 lines)
* D1-3 Destination (3 lines)
* D1-3a Destination and distance (3 lines)
* D1-3b Combination destination and distance (2 lines) / destination
* D1-3d Circular intersection destination (3 lines)
* D2-1 Distance (1 line)
* D2-2 Distance (2 lines)
* D2-2a Distance (2 lines)
* D2-3 Distance (3 lines)
* D3 Street name (2 lines)
* D3-1 Street name (1 line)
* D4-1 Parking area
* D5-1 Rest area XX kilometers
* D5-2 Rest Area (with arrow)
* D6-1 Scenic area
* D6-2 Scenic area XX Kilometers
* D6-3 Scenic area
* D9-2 Hospital
* D9-7 Gasoline
* D9-9 Lodging
* D10-1 Reference Location (1 digit)
* D10-1a Intermediate Reference Location (2 digits)
* D10-2 Reference Location (2 digits)
* D10-2a Intermediate Reference Location (3 digits)
* D10-3 Reference Location (3 digits)
* D10-3a Intermediate Reference Location (4 digits)
* E1-1 Exit distance
* E1-5mP Left (plaque)
* E5-1 (D) Exit (right)
* E5-1 (I) Exit (left)
* EM-1a Tsunami evacuation route
* EM-1b Tsunami danger zone
* EM-1d Tsunami zone
* M4-6 Leaving tsunami danger zone
* M4-14 Entering tsunami danger zone
* I-5 Principal Airport
* I-8 Library
* I-9 Vehicle Ferry Terminal
* I-10 Moscoso Bridge
* I-15 Race Track
* M1-6a Primary Route marker (2 digits)
* M1-6b Primary Route marker (2 digits)
* M1-6c Primary Route marker
* M1-6d Primary Route marker
* M2-1
* M2-1
* M2-1
* M2-2 Combination junction
* M3-1
* M3-1
* M3-1
* M3-2
* M3-2
* M3-2
* M3-3
* M3-3
* M3-3
* M3-4
* M3-4
* M3-4
* M4-5
* M4-5
* M4-5
* M4-6
* M4-6
* M4-6
* M5-1 (D) Advance Right Turn Arrow (90 Degree Angle)
* M5-1 (I) Advance Left Turn Arrow (90 Degree Angle)
* M5-1 (D) Advance Right Turn Arrow (90 Degree Angle)
* M5-1 (I) Advance Left Turn Arrow (90 Degree Angle)
* M5-2 (D) Advance Right Turn Arrow (45 Degree Angle)
* M5-2 (I) Advance Left Turn Arrow (45 Degree Angle)
* M5-2 (D) Advance Right Turn Arrow (45 Degree Angle)
* M5-2 (I) Advance Left Turn Arrow (45 Degree Angle)
* M5-3 (I) Advance Left Turn Arrow (Circular Intersection)
* M6-1 (D) Right Directional Arrow
* M6-1 (I) Left Directional Arrow
* M6-1 (D) Right Directional Arrow
* M6-1 (I) Left Directional Arrow
* M6-2 (D) Diagonal Right Directional Arrow
* M6-2 (I) Diagonal Left Directional Arrow
* M6-2 (D) Diagonal Right Directional Arrow
* M6-2 (I) Diagonal Left Directional Arrow
* M6-2a (D) Downward Diagonal Right Directional Arrow
* M6-2a (I) Downward Diagonal Left Directional Arrow
* M6-3 Straight Directional Arrow
* M6-3 Straight Directional Arrow
* M6-4 Double Directional Arrow
* M6-5 (D) Double Diagonal Right Directional Arrow
* M6-5 (I) Double Diagonal Left Directional Arrow
* M6-6 (D) Straight And Right Directional Arrow
* M6-6 (I) Left And Straight Directional Arrow
* M6-7 (D) Straight And Diagonal Right Directional Arrow
* M6-7 (I) Diagonal Left And Straight Directional Arrow
* R1-6a Bus stop
* R2-3 Electronic Toll Collection Speed Limit
* R3-31 Electronic toll collection only

## School zone signs

The S series of signs are specially designated by the MUTCD for use around schools. Some states have additional school warning-related signs in the S series, the W series of warning signs, and/or the R series of regulatory signs of the state supplement or state MUTCD. As of 2009 the MUTCD requires school warning signs to have fluorescent yellow-green backgrounds.
* S1-1 School zone ahead (also used for pedestrian crosswalks near schools)
* S3-1 School bus stop ahead
* S3-2 School bus turn ahead
* S4-5 School speed limit zone ahead
* S5-1(15) School speed limit when flashing (15 mph)
* S5-1(25) School speed limit when flashing (25 mph)
* S5-2 End school zone (usually under an R2 speed limit sign)
* W16-5p (D) Supplemental arrow to the right (plaque)
* W16-5p (I) Supplemental arrow to the left (plaque)
* W16-6p (D) Supplemental arrow to the right (plaque)
* W16-6p (I) Supplemental arrow to the left (plaque)
* W16-7p (D) Downward diagonal arrow to the right (plaque)
* W16-7p (I) Downward diagonal arrow to the left (plaque)
* W16-9p Ahead

## Bicycle signs

* D4-3 (I) Bicycle parking area (left)
* D4-3 (D) Bicycle parking area (right)
* D11-1 Bike route
* D11-1a Bicycles permitted
* D11-1bP Bike route (plaque)
* M5-1 (D) Advance Right Turn Arrow (90 Degree Angle)
* M5-1 (I) Advance Left Turn Arrow (90 Degree Angle)
* M5-2 (D) Advance Right Turn Arrow (45 Degree Angle)
* M5-2 (I) Advance Left Turn Arrow (45 Degree Angle)
* M6-1 (D) Right Directional Arrow
* M6-1 (I) Left Directional Arrow
* M6-2 (D) Diagonal Right Directional Arrow
* M6-2 (I) Diagonal Left Directional Arrow
* M6-3 Straight Directional Arrow
* R3-17 Bike lane
* R3-17a Bike lane ahead (plaque)
* R3-17b Bike lane ends (plaque)
* R5-6 No bicycles
* R7-9 No parking bike lane
* R9-6a Yield to pedestrians
* R9-7 Shared-use path restriction
* W11-1 Bicycles ahead
* W11-15 Bicycle and pedestrians
* W16-1 Share the road (plaque)
* W16-19 Bicycle crossing (plaque)