The acceptance of material on loan implies that the following conditions have been accepted:
- Loan material must be handled with the utmost care and must be securely packed for return by insured or registered mail.
- National Museum specimens described as holotypes, paratypes, allotypes or any other category or type, or used to supplement the description of a new taxon or the redescription of an existing species, are to be clearly labeled as such, and must be returned.
- All labels and numbers given to specimens must be retained and under no circumstances should any of these be discarded or altered. Where applicable, the catalogue numbers of specimens must be given in descriptions.
- The National Museum must be credited in any publication when referring to this material. At least two copies of any such publication must be sent to this Museum.
- Without express permission, no specimen or object may be altered, dissected, prepared, restored, cleaned or treated — either by mechanical or chemical means.