The present document is a technical report for "Expansion of LTE_FDD_1670_US to include 1670-1680 MHz Band for LTE in the US" study item, which was approved at 3GPP TSG RAN#59 [2]. The ID assigned to the study item is FS_LTE_FDD_1670_US. The objective of this study item is to facilitate and harmonize the characteristics and efficient use of 1670-1680MHz DL duplexed with band 24 UL for LTE FDD deployment in US. In addition to the schedule and status of the study items, the report includes a description of the motivation, requirements, study results and specification recommendations.