The Chemical Substance Control Law (CSCL)


This law was amended in May 2009 and enter into force in 2010 and 2011. ( Amendment of the CSCL)


Please click each term for details.

  2010 (Apr.1, May 1, Oct.1) 2011 (Apr.1)
Banned chemicals Class I Specified Chemical Substances
1. Technical Standard set for substances and designated products
2. Labeling requirement
3. Permission for manufacturing (practically banned chemicals)
4. Prior notification requirement for use
Restricted chemicals Class II Specified Chemical Substances
1. Technical Guidelines set for substances and designated products
2. Labeling requirement
3. Prior notification and post manufacturing report requirements
Substance of Concerns Type I Monitoring Chemical Substances Monitoring Chemical substances
Type II Monitoring Chemical Substances Priority Assessment Chemical Substances (PACS)
Type III Monitoring chemical Substances

Mandatory report requirement on the above substances of concerns

  * Mandatory report requirement on PACS
2. Hazard communication
Existing chemicals Existing chemical substances

General Chemical Substances

  1. Mandatory report requirement on General Chemical Substances
New chemicals Types of Pre-Manufacturing Notifications
1. Low Molecular Weight Chemical Substances (None Polymers)
2. Polymers
  * Definition of a polymer

* Test methods for Polymers

  * Flow Diagram for Polymer Flow Scheme

* Judgment criteria based on the results of Polymer Flow Scheme (Translation of goverment notice)

Exemptions from notification (Prior Approval required)
1. Small Volume Chemical Substances
2. Law Volume Chemical Substances
3. Intermediates, exporting chemicals, chemicals in closed system
4. Polymer of Low Concern (PLC)
  * PLC Criteria
  * Test methods and judgement criteria for PLC (Translation of goverment notice)
  * Flow Diagram for PLC
  * Procedure for the application of PLC (Translation of goverment notice)
Exemptions from notification (Prior Approval NOT required)
1. R&D chemicals
2. Salts, Hydrates etc.
3. Articles
4. Products packaged in final use for consumers
5. Impurities/By products
6. Polymers meet either 99% rule or 98% rule.
7. Others

This inventory is called as CSCL list, METI inventory, ENCS list, or MITI list.


The inventory is consisting of the Static part and Dynamic part

New chemicals may be added to the Dynamic part

2. No confidentiality
3. CAS number assignment project
Report of hazard information Types of report
1. Report of publicly unknown hazard information to competent authority (for existing or new information)
2. Report based on the requirement of competent authority to provide hazard information
3. Report based on the order of competent authority to investigate hazard information


None applicable chemicals under the Chemical Substance Control Law
1. Radio active materials (regulated by other relevant law)
2. Specified Poisonous (ditto)
3. Stimulants and its raw materials (ditto)
4. Others
Prioritization of hazard chemical substances for risk assessment     1. Screening level of evaluation for selecting Priority Assessment Chemical Substances
      2. Risk evaluation of Priority Assessment Chemical Substances
Use classification code Use classification code table (47 use codes with 280 detail use codes)