- 2010-08-17
- Expansion of Application Scope of Employment Insurance
- 2010-06-28
- Reform on Labor Standards Act
- 2010-04-10
- Revision of Employment Insurance Premium Rate
- 2010-04-06
- Revision of the Premium Rate for Health Insurance
- 2009-09-21
- Revision of the premium rate for health insurance
- 2009-09-15
- The rate of pension insurance premium was changed from September 2009 ( payment month was from October 2009).
- 2009-04-16
- Change in the labor insurance premium rate
- 2009-04-08
- Revision of Employment Insurance Premium Rate
- 2009-03-01
- Revision of the premium rate for nursing care insurance
- 2008-09-22
- The rate of pension insurance premium was changed from September 2008 ( payment month was from October 2008).
- 2007-10-01
- Compulsory Notification of Foreign Nationals Employed in Japan
- 2007-09-03
- The rate of pension insurance premium was changed from September 2007 ( payment month was from October 2007).
- 2007-05-01
- Revision of Japanese Health insurance system − Upper limit of the base amount for health insurance premiums calculation regarding bonus has been revised.
- 2007-04-23
- Revision of Japanese Health insurance system-Revision of health insurance premium brackets
- 2007-04-20
- Revision of Premium Rate of Employment Insurance
