The present document is a technical report for "Adding L-Band LTE for ATC of MSS in North America" work item, which was approved at 3GPP TSG RAN#48 [2]. The objective of this work item is to add L-Band to the appropriate 3GPP core specifications for LTE FDD networks. In addition to the schedule and status of the work items, the report includes a description of the motivation, requirements, study results and specification recommendations.