The first amendment (Amendment A) to DIGEST 2.0 was published in February 1999. The purpose of Amendment Document A is to record those changes that may affect the implementations of the standard. The amendment is sub-divided in to A1 and A2. A1 are additions or changes to DIGEST Parts 1 to 3; and A2 are additions or changes to DIGEST Part 4 (FACC). A1 and A2 have their own introduction that explains the nature of the changes, and how to apply them to the standard. Possible changes to DIGEST that do not affect the implementations (such as editorial changes) are being collected and stored on a database for inclusion in the next edition of DIGEST. If you need further information regarding the application of the amendment, please contact your national representative or the DIGEST Custodian at firstname.lastname@example.org.