The Special Provision for UN1889 CYANOGEN BROMIDE pertains to transportation regulations of hazardous materials, detailing safety requirements such as packing and labeling, which are outlined in Schedules 1 or 2.
The Special Provision for UN1889 CYANOGEN BROMIDE is likely related to the handling and shipping regulations for hazardous materials. UN1889 is the United Nations number designated to cyanogen bromide, a toxic compound that can react violently with water or moisture. This substance would be listed under Schedules 1 or 2 citing the specific provisions for its transportation, which may include packing, labeling and documentation requirements for safety.
Without access to the actual Schedules 1 and 2 provided in the question context, it is not possible to determine the exact Special Provision directly.
However, general knowledge about transportation of dangerous goods would indicate that Special Provisions could include restrictions on the means of transportation, double-packaging requirements, or the need for accompanying documents describing emergency protocols in case of spillage or exposure.