Attention to restoration will be given on a situation basis. No specimens will leave the TWU Herbarium on loan unless they meet highest standards of quality. An 'in process' cabinet will be initiated for specimens in need of restoration and repair.

Only acid-free paper will be used for the TWU Herbarium. Old sheets of acid-based paper should be remounted. If the specimen is attached by tape, it can be removed from old paper entirely and remounted on acid-free paper. If the specimen was glued to the old paper, as much of the sheet as possible should be cut away before the specimen can be remounted on acid-free paper. It is imperative that all labels and any forms of writing on the old sheet be cut out and saved and attached to the new sheet. Any label from a historically significant collector or associated with a historically significant collection should not be removed or tampered with unless in a necessary restoration.

Only good quality, reversible, white glue will be used to restore the specimens. Standard herbarium-quality cloth tapes can be used, but no transparent tape should be used for the purpose of the specimen mounting.

Loose parts of the specimens will be either placed in envelopes attached to the sheet or re-glued to the sheet in the original place prior to breakage or on another area of the herbarium sheet.

Discarding specimens. The goal of the TWU Herbarium staff is to avoid discarding of damaged specimens by properly curating the collection. However, for the beginning, specimens can be discarded in the following instances:

1. The specimen has no collection date recorded;
2. The specimen has absolutely no location data;
3. There are at least five specimens of the same taxon already in the Herbarium;
4. The specimen is not particularly rare or infrequent in the natural world;
5. The specimen was not collected or identified by a renowned or noteworthy collector.

All of the above criteria must be met before specimens can be discarded. When the discarded specimen is removed from the herbarium, its accession number, information, and justification for discard should be recorded in a notebook for discarded specimens. If the specimen has been recorded on a computer database, make note that the specimen has been discarded.