During their life cycles, banknotes are subject to varying conditions. They change hands innumerable times, and they are more likely than not exposed to several climatic factors, all of which causes deterioration. To prolong their lives—that is, maintain ideal characteristics for keeping them in circulation—the following precautions should be taken:

		Do not staple them under any circumstances.
		Do not mark or scratch them in order to verify their authenticity.
		Do not write on them or stamp them with seals.
		Do not tear or wrinkle them.
		Store them without folding. If it is necessary to fold them, use as few folds as possible and avoid bearing down on each fold.
		Keep them away from fire and moisture.
		In the event you encounter a piece of a banknote, do not attempt to make a complete banknote out of it.
		Take dirty, patched, marked or incomplete banknotes to your bank or any exchange center.

These recommendations apply to all types of banknotes.