Ensuring timely and consistent data delivery by automated control procedures Plag, H.-P., Kristiansen, O. (Norwegian Mapping Authority, Honefoss, Norway) Data delivery to the IGS and other GPS data centers repeatedly has been hampered by two problems: data not arriving at the destination without notification reaching the originator, and inconsistency of data and metadata at the destination. NMA is delivering GPS data to several customers including EUREF and IGS. Problems in delivery and consistency are partly due to insufficient check and reporting routines at the final destination. Therefore, NMA is developing simple, automated procedures which test with low latency the arrival and consistency of NMA's data at the final destination. Problems are detected at an early state, and reported with dedicated e-mails to the responsible person/group at NMA. The extent of reports as well as the recipient(s) depend on the history of a given problem. It could be an advantage to have these automated routines implemented at the final destination, e.g. the IGS global data centre.