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Central Narcotics Bureau
  • Who We Are
    • Annual Reports
    • CNB Explains
      • Articles
    • e-Services
  • Drug Information
    • Drugs and Inhalants
    • Intoxicating Substances
    • Misuse of Drugs Act
    • Precursor Control
    • Plants that Contain Controlled Drugs
  • Educational Resources (PDE)
    • For Youths
      • Articles
      • Anti-Drug Advocate Programme
      • Board Game
    • For Communities
      • Resource Toolkit
      • Collaterals
      • PDE Message Cards
      • AR Mobile Game App
      • PDE Colouring Sheet
    • Core Programmes
      • School Talks and Exhibitions
      • Anti-Drug Workplace Talk
      • Skit for Primary Schools
      • Skit for Secondary Schools
      • Collaboration
      • Anti-drug Ambassador Activity (AAA)
      • After-School Engagement Programme
      • Augmented Reality (AR) Exhibition
      • CNB Heritage Gallery
    • United Against Drugs Coalition (UADC)
    • Myths and Facts about Drugs
      • Cannabis
    • PDE Publications
      • Illustrated Book
      • Activity Book
      • Comic Book
      • kNOw Cannabis
      • Little Red Dot
      • IN Magazine
      • Interactive Book
      • Smart Parenting
      • NPS information booklet
  • News & Events
    • News
      • Latest
      • Archive
    • Events
    • Media
    • Reports (Overview)
      • Drug Report
    • ADAC 2022
    • CNB50
  • Careers
    • Narcotics Officer
    • Civilian Officer
    • Scholarships and Sponsorships
    • Career Roadmap
    • Officer Feature Stories
      • Sebastian Tan
      • Dinesh Kumar Rai
      • Subashiyni Ramakrishnan
      • Taufiq Abdul Azim
Beware of fake/phishing SMS messages or emails that impersonate the Central Narcotics Bureau (CNB). CNB does not send clickable links in SMS messages. CNB officers will only send emails from addresses ending with “@cnb.gov.sg”. If in doubt, you may contact us via the official channels listed at https://www.cnb.gov.sg/contact-us
Precursor Control
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Home > Drug Information > Precursor Control
CNB Crest
Introduction
CNB Crest
Patrol (Permit Administration and ConTROL System)

List Of Controlled Substances

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Controlled substances as specified under the Third Schedule of the Misuse of Drugs Act (MDA)
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Importation Of Food Products Containing Poppy Seeds

Scheduled Substances

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Circular 1 - dated 26 May 2008
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Circular 2 - dated 01 Apr 2001
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Circular 3 - dated 27 Jun 2014
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Circular 4 - dated 02 Sep 2014
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Circular 5 - dated 05 Nov 2015
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Circular 6 - dated 04 Oct 2017
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Circular 7 - dated 01 Jun 2022

Central Narcotics Bureau (CNB)

Who We Are
  • Overview
  • Vision, Mission, Values
  • Organisational Structure
  • CNB Explains
  • Annual Reports
  • Useful Links
  • e-Services
Drug Information
  • Drugs and Inhalants
  • Intoxicating Substances
  • Misuse of Drugs Act
  • Precursor Control
Educational Resources (PDE)
  • For Communities
  • For Youths
  • Core Programmes
  • United Against Drugs Coalition (UADC)
  • Myths and Facts about Drugs
  • PDE Publications
News & Events
  • News
  • Events
  • Media
  • Reports (Overview)
  • ADAC 2022
  • CNB50
Careers
  • Narcotics Officer
  • Civilian Officer
  • Scholarships and Sponsorships
  • Career Roadmap
  • Officer Feature Stories
 
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© 2021 Government of Singapore
Last Updated 11 Jan 2023