Six pipeline safety recommendations issued to the Pipeline and Hazardous Materials Safety Administration (P-11-014, P-11-015, P-12-004, P-14-001, P-15-018 and P-15-020) were classified Jan. 23, as closed, acceptable action taken. Also recently classified as closed, acceptable action taken was safety recommendation R-14-022, issued to the Association of American Railroads. Safety recommendation A-07-112, issued to the FAA, recently was classified as closed, acceptable alternative action taken.