The task force and the CHEST editorial staff also felt that moving away from print publication to electronic publication offered several advantages. Most important are the intrinsic advantages of electronic publication. Avoiding the time needed for printing and mailing the issue expedites the availability of the guidelines. Users have noted that the larger guidelines, with hundreds of pages, are difficult to navigate. Electronic versions will be more easily navigable and searchable. Electronic publication also allows the guidelines to be linked to additional relevant content such as underlying evidence, implementation tools, and patient education materials. Eventually, should evidence that could affect clinical practice become available after guideline publication, readers can be alerted to this even before the subsequent version of the guideline incorporates the evidence. Finally, a large component of the overall expense of the guidelines stems from the cost of paper publication and shipping (several hundred thousand dollars for AT8). The task force noted that electronic publication also provides the opportunity for the ACCP to become more environmentally friendly, saving >50 tons of paper with electronic publication of AT9 alone. AT9 represents the first step in the transition to the new publication process, with only the Introduction, Methodology, and Executive Summary of recommendations being printed on paper. In the future, print publication will be used when demanded by the needs or scale of the content, perhaps, for example, for the first edition of a new guideline.