Specifications include, but are not limited to: Clearing and mulching is to be performed under regularly scheduled ARRC train traffic and potentially within areas where access is difficult. This is due to the presence of bridges, adverse terrain and diverse geographic variations. This Clearing and Mulching program must be scheduled and executed in a manner that does not interfere with scheduled Railroad Traffic and usage, work must occur outside bird windows and come to completion within the frozen conditions of the winter months and within the time frames listed herein. Unless specifically authorized by the ARRC, no tree clearing or work within the ARRC ROW will be authorized during summer passenger train service schedule. Anticipated summer schedule May 14th – September 20th although this is subject to change with charters and special trains.