logo01Independent of Host (IOH) module certification in Japan for either wireless or wireline devices is subject to the following conditions:
– The Module must include all HW and SW required for telecommunications operation. If a specific driver is required, it will need to be included in the certification.
– The Module has to remain easily user-installable and not secured to its host by permanent means (glue / solder / tamper screws)
– The Module must carry its own certification label.  If the label cannot be seen when the module is installed, it has to be printed in the user’s manual. 
 
If the module is soldered to its host, or made non-removable (with common tools) using tamper screws, its certification becomes invalid.
This condition is not explicitely listed in any Japanese law texts (Radio Law, Telecommunications business law, Etc.) however it is explained by the fact that if the module is secured to another device, it becomes something different from the module described in the certification. (different shape, size, weight)  and is therefore no longer considered the same device, and loses its certification.
 For more information, contact Ms Chun Kim at Approval Specialists, http://www.approvalspecialists.com/contact_us/contact_us