Public laws, 83d Congress. 670. H. R. 6223, act to amend sec. 87 of National defense act of June 3, 1916, as amended (32 U. S. C. 47), to relieve States from accountability and pecuniary liability for property lost, damaged, or destroyed except in cases where it shall appear that loss, damage, or destruction of property was due to carelessness or negligence or could have been avoided by exercise of reasonable care.