A section devoted to errata, corrections or clarifications, is a good criterion for quality. Mistakes are bound to occur from time to time, and scientific matters often require supplementary information. Quality control mechanisms should be in place to avoid them as far as possible. However hard one tries to avoid making mistakes, they do arise. If the bulletin is to remain trusted, it must publish a 'correction' as soon as possible. It might feel awkward to make a correction, but it is more important to correct errors and possibly save lives, than to remain quiet in the hope that the bulletin's reputation will remain intact. The prompt publication of a correction is a way of allowing readers to see that you are honest and trustworthy.
The UK’s Drug and Therapeutics Bulletin was the first bulletin to include a section for errata, followed by many other ISDB bulletins. Since bulletins often have a faithful readership, readers are likely to see corrections or clarifications published in the following issue. Readers should be encouraged to point out errors they notice in the bulletin or statements that are ambiguous or too vague. The corrections or clarifications need to be included in the index.