Public necessity requires that the 30-day comment period of Public Utilities Code section 311(g) be reduced in order to protect the welfare of the citizens of San Diego. We have balanced the public interest in avoiding the possible harm to public welfare flowing from the delay in considering this resolution against the public interest in having the full 30-day period for review and comment as required by Rule 77.7(f)(9). We conclude that the former outweighs the latter. We conclude that failure to adopt a decision before the expiration of the 30-day review and comment period would cause significant harm to the public welfare. Accordingly, we reduce the comment period for this resolution.