On tuesday, December the 13th, the Minestry of Economy published the new inspection requirements for application equipment. Now there has been clarity about the inspection requirement for weed sprayers. The NFO thinks that the test for weed sprayers will be required every six years in stead of every three years. The test requirement does apply immediately. The Ministry agreed that the NVWA will not give you a fine in 2017 if the weed sprayers has not been inspected yet, because it is impossible to test all the weed sprayers in a few months. The test requirement applies to all the professional application equipment, including granular spreaders. Exemptions have been realized for handheld equipment, dipping baths and evaporators of sulfur 1-methylcyclopropeen (like Smartfresh). More information about the application equipment can be found on the website of the NVWA.
On the website of SKL, you can also find additional information.