🚗 Singapore Car Plate Colours & Prefixes: What Do They Really Mean?

Most Drivers See Them Daily—But Few Know What They Actually Represent 👀

Ever wondered why some Singapore car plates are red, yellow, or blue? Discover what each colour and prefix really means — from private hire to diplomatic rides.

Ever spotted a red plate and wondered what it means? Or noticed a car with “SJ” and thought it looked official? In Singapore, vehicle plates aren’t just random—they’re a visual code that reveals a car’s purpose, privilege, and restrictions.

Whether you're a curious commuter, a new driver, or just love decoding details, this guide breaks down everything from plate colours to special prefixes—including the mysterious P-plate that doesn’t even have a “P” on it.

🎨 Singapore Vehicle Plate Colour Guide

Here’s a quick breakdown of what each colour means—perfect for spotting taxis, vintage cars, or even diplomatic vehicles at a glance.

#️⃣	🎨 Plate Colour	🔤 Text Colour	🚗 Vehicle Type / Purpose	📘 Meaning / Usage
1️⃣	⚫ Black	⚪ White	🚘 Standard Private Car	Most common format for personal vehicles.
2️⃣	⚪ White (Front) / 🟡 Yellow (Rear)	⚫ Black	🚘 Private Car (Reflective Plate)	Euro-style reflective plates; legal and modern.
3️⃣	⚫ Black	⚪ White	🚖 Taxi / Private Hire	Licensed taxis and ride-hailing cars (e.g. Grab, Gojek).
4️⃣	🟢 Green	⚪ White	🚛 Goods Vehicle	Commercial vans, lorries, and trucks.
5️⃣	🔵 Blue	⚪ White	🚌 Public Bus	Operated by SBS Transit, SMRT, or LTA-contracted fleets.
6️⃣	🟥 Red	⚪ White	🚕 Off-Peak / Weekend Car	Lower road tax; restricted hours unless e-Day Licence is used.
7️⃣	🟥 Red & 🟡 Yellow (Diagonal)	⚪ White	🚗 Vintage / Classic Vehicle	Registered under classic car scheme; limited usage.
8️⃣	🟤 Brown	⚪ White	🏝 Restricted Zone Vehicle	Operates in high-security areas like Jurong Island.
9️⃣	⚪ White with 🔴 Red Letters	🔴 Red	🚑 Diplomatic Vehicle	Belongs to foreign embassies; enjoys diplomatic immunity.
🔟	⚪ White with 🔵 Blue Letters	🔵 Blue	🏛 Government Vehicle	Used by Singapore government agencies.
1️⃣1️⃣	⚪ White with 🟣 Purple Letters	🟣 Purple	🏥 Statutory Board Vehicle	Owned by boards like HDB, NEA, or LTA.
1️⃣2️⃣	⚪ White with 🟠 Orange Letters	🟠 Orange	🏫 School Bus	Dedicated school transport vehicles.
1️⃣3️⃣	🔵 Blue & 🟡 Yellow (Diagonal)	⚪ White	🧪 R&D / Experimental Vehicle	Used for testing, research, or prototype development.

🅿️ What Is a P-Plate in Singapore?

If you’ve seen a red and yellow disc on a car’s windscreen, that’s a P-plate—but it doesn’t actually have a “P” on it. 🤯

New drivers must display this plate for their first 12 months. It’s not part of the registration number—it’s a legal decal that signals you're on probation.

📋 P-Plate Details

🅿️ P-Plate Design	📘 Meaning	🚗 Who Uses It	⏱️ Duration
🔺🟨 Red & Yellow disc (no text)	Probationary Driver	Class 3/3A license holders	First 12 months of driving

✅ Note: The official P-plate is a plain red and yellow circular disc, with no letters or symbols. It must be clearly displayed on both the front and rear windscreens.

🔠 Vehicle Prefixes & Special Codes

Some plates start with unique prefixes that signal status, function, or authority. Here’s what they mean:

#️⃣	🔤 Prefix	🚦 What It Means
1️⃣	S	Standard private vehicle registration (e.g., SBA1234X)
2️⃣	G	Historically used for goods vehicles; now merged into “S” series
3️⃣	SH	Assigned to taxis under older schemes
4️⃣	SZ	Used for older rental or chauffeur-driven private hire cars
5️⃣	SEP	Singapore Elected President – official state car
6️⃣	MID	Ministry of Defence – military vehicles
7️⃣	SJ	Supreme Court Judges – e.g., SJ1 for Chief Justice
8️⃣	SPF	Singapore Police Force – Commissioner’s vehicle
9️⃣	SBS / SMB	Public buses operated by SBS Transit or SMRT
🔟	QX	Temporary import, test, or emergency vehicles
1️⃣1️⃣	RD	Research & Development vehicles (rare)

💡 Final Thought

Singapore’s car plate system is more than just numbers and letters—it’s a visual language of identity, authority, and access. From vintage collectors to government convoys, every plate tells a story.

Next time you're on the road, take a closer look. You might just spot something rare, official, or historically cool.