The National Nuclear Security Administration (NNSA) and the Air Force Research Laboratory (AFRL) gratefully acknowledge the important contributions of the following people for their work to produce the Proceedings of the 27th Seismic Research Review: Ground-based Nuclear Explosion Monitoring Technologies.

Authors of papers for excellent research, good technical content, and willing cooperation in electronic submission.

Dr. Anton M. Dainty, Mr. Robert J. Raistrick, Dr. Frederick R. Schult, AFRL/VSBYE, and Ms. Doris Richards, ESC/PAM, for review and clearance of abstracts and papers related to AFRL contracts.

Dr. Mark T. Woods, Air Force Technical Applications Center (AFTAC)/TTR, for review and clearance of abstracts and papers related to AFTAC contracts.

Mr. John J. Dwyer, AFTAC/CTI, for review of abstracts and papers related to AFTAC contracts.

Ms. Sabrina D. Fletcher, Lawrence Livermore National Laboratory (LLNL), for assistance in ensuring that the CDs could be read on a variety of platforms and for burning, labeling, and jacketing the CDs.

Ms. Jody Benson and Ms. Eileen Patterson, Los Alamos National Laboratory (LANL), for supplementary technical editing of papers.

Mr. Marvin A. Wetovsky, LANL, for overall coordination of the Proceedings development and for technical editing of abstracts and papers.

Ms. Deidré A. Plumlee, LANL, for final composition of Proceedings covers.

Mr. Geoff G. Miller and Mr. Rodger P. Lilyestrand, LANL, for classification review of compiled papers.

Information Management Group, LANL, for color printing and binding of the hard copies.

Ms. Ruth N. Robichaud, LANL, for design and artwork of the CD label.

Ms. Leslie A. Casey, NNSA, for review and clearance of abstracts and papers related to NNSA contracts and for NNSA managerial and financial support of the Proceedings.

Dr. Joseph C. Wehlburg, NNSA/SNL, for technical review of abstracts and papers.

Dr. Leigh S. House, NNSA/LANL, for technical review of abstracts and papers.

Mr. William L. Andre, Space and Missile Defense Command (SMDC), for review and clearance of abstracts and papers related to SMDC contracts.

Ms. Mary L. Girven, Sandia National Laboratories (SNL), for making everyone's job easier with web-based technology for abstract and paper submission, on-line review and approval tools, and creation of the master files for the hardcopy, CD and website versions of the Proceedings.

Ms. Guadalupe (Lupe) Massoth, SNL, for providing assistance to Mary Girven on troubleshooting web related problems.

Dr. David B. Harris, LLNL; Mr. Phillip E. Harben, LLNL; Mr. Julio Aguilar-Chang, LANL; Mr. Ward L. Hawkins, LANL; Dr. Steve R. Taylor, LANL; Dr. Dale N. Anderson, Pacific Northwest National Laboratory (PNNL); Dr. Harry S. Miley, PNNL; Mr. J. Mark Harris, SNL; Mr. Preston B. Herrington, SNL; and Dr. Christopher J. Young, SNL, for a myriad of internal management and technical reviews of NNSA abstracts and papers.