The Central Bank warns that it will not accept bills that have been written on, stapled, stamped or marked in any way, and advises that the measure will be in effect as of 24 January. After that date, such bills will not be accepted as legal tender, thus putting the onus of verifying the bills on individual users. The measure was taken in part to reduce the high rate of deterioration of the bills and the general practice of using currency as notepaper.