REPORTING MARK SUFFIXES

X	PRIVATE CAR OWNERS
U	CONTAINERS
Z	TRAILERS

Y	   YADKIN RAILROAD (SOUTHERN RWY.)
Y&MV	   YAZOO & MISSISSIPPI VALLEY RAILROAD (ILLINOIS CENTRAL SYSTEM; 
	   SOUTHERN RWY., QUEEN & CRESCENT ROUTE)
YAML       YANKEE LINES INC
YAN        YANCY RAILROAD
YARR       OHIO CENTRAL RAILROAD SYSTEM (YOUNGSTOWN & AUSTINTOWN RAILROAD, INC.)
YAZ	   CENTURY 21 PLANT
YB         OHIO CENTRAL RAILROAD SYSTEM (YOUNGSTOWN BELT RAILROAD CO.)
YBHA	   YUBA HEAT
YBTL       YOUNGBLOOD TRUCK LINES INC
YCEU       INTER-CONTINENTAL EQUIPMENT INC.
YCMZ	   YELLOW CREEK MINE
YDC	   YANKEE DOT CORP.
YDCX	   *YANKEETOWN DOCK CORP.
YDCX	   +PEABODY COALSALES CO.
YDHR	   YORK DURHAM HERITAGE RAILWAY
YEMX	   YESERA MONTERREY, SA
YFIZ       YELLOW FORWARDING CO.
YFSY       YELLOW FREIGHT SYSTEM, INC.
YFSZ       YELLOW FREIGHT SERVICES, INC.
YILA	   YAKIMA INTERURBAN LINES ASSOCIATION
YKR        YORK RWY CO. [YORKRAIL, INC.] 
YMCZ       YANGMING MARINE TRANSPORT CORP.
YMLU	   *YANG MING LINE (REGISTRATION ELIMINATED NOV. 1997)
YMLU       +YANGMING MARINE TRANSPORT CORP.
YMLZ       YANGMING MARINE TRANSPORT CORP.
YMQZ	   YELLOW MEDICAN QUARRY
YN	   YOUNGSTOWN & NORTHERN RAILROAD CO.
YOCX	   YALE OIL ASSOCIATION (UUNION TANK CAR CO.)
YOKX	   YALE OIL ASSOCIATION
YOTC       YORK TRANSPORTATION CO.
YOTX	   YALE OIL TANK LINE CO.
YRC	   YORK RWY CO.
YRMX	   YUKON RAILROAD MUSEUM, YUKON, O
YRPL	   YELM ROY PRAIRIE LINE
YRTX	   YARYAN ROSIN & TURPENTINE CO.
YS         *(PLW) PL&W RAILROAD CO., INC. [YOUNGSTOWN & SOUTHERN RWY.; 
	   YOUNGSTOWN & SUBURBAN RWY. CO.]
YS	   +OHIO & PENNSYLVANIA RAILROAD CO.
YSAA	   *N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSAA       +YAMASHITA-SHINNIHON LINE
YSAB       YAMASHITA-SHINNIHON LINE
YSAD       YAMASHITA-SHINNIHON LINE
YSAH       YAMASHITA-SHINNIHON LINE
YSAL	   *N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSAL       +YAMASHITA-SHINNIHON LINE
YSAM       YAMASHITA-SHINNIHON LINE
YSAZ       NIPPON LINER SYSTEM
YSB        YORKE & SON BARGE
YSBZ	   N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSDA	   *N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSDA       +YAMASHITA-SHINNIHON LINE
YSDF	   *N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSDF       +YAMASHITA-SHINNIHON LINE
YSDU       YAMASHITA-SHINNIHON LINE
YSDX       YOUNGSTOWN STEEL DOOR CO.
YSEM	   N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSFD       YAMASHITA-SHINNIHON LINE
YSFF	   *N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSFF       +YAMASHITA-SHINNIHON LINE
YSFM	   *N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSFM       +YAMASHITA-SHINNIHON LINE
YSIC       YAMASHITA-SHINNIHON LINE
YSIP       YAMASHITA-SHINNIHON LINE
YSIU       YAMASHITA-SHINNIHON LINE
YSJU	   *N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSJU       +YAMASHITA-SHINNIHON LINE
YSLD       YAMASHITA-SHINNIHON LINE
YSLM	   *N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSLM       +YAMASHITA-SHINNIHON LINE
YSLR       YOLO SHORTLINE RAILROAD COMPANY
YSLT       YAMASHITA-SHINNIHON LINE
YSLU	   *N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSLU       +YAMASHITA-SHINNIHON LINE
YSLZ       (YSLU) YAMASHITA-SHINNIHON LINE
YSMU	   N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSMX       RETIRED 09-29-92 ATP (1676) [CANADIAN GYPSUM CO. LTD.; PANAMA GYPSUM CO.]
YSNA	   *N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSNA       *YAMASHITA-SHINNIHON LINE
YSRR	   YOUNGSTOWN & SOUTHEASTERN RAILROAD CO. INC.
YSSM	   N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YST	   YOUNGSTOWN SHEET & TUBE CO.
YSTD       YAMASHITA-SHINNIHON LINE
YSTM       YAMASHITA-SHINNIHON LINE
YSTS       YAMASHITA-SHINNIHON LINE
YSTT       YAMASHITA-SHINNIHON LINE
YSTU	   *N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YSTU       +YAMASHITA-SHINNIHON LINE
YSTX       RETIRED 02-19-91 FET (ACI 1677) [YOUNGSTOWN SHEET & TUBE CO.]
YSUF       YAMASHITA-SHINNIHON LINE
YSVR	   YELLOWSTONE VALLEY RAILROAD INC.
YTDZ	   YANKEETOWN DOCK CORP.
YTFL       YELLOW TRANSIT FRT LINES
YTTX	   TTX CO.
YUCM	   N.Y.K. LINE (REGISTRATION ELIMINATED NOV. 1997)
YUR	   YUMA VALLEY RAILROAD
YV	   YOSEMITE VALLEY RAILWAY
YVRR       YADKIN VALLEY RAILROAD CO.
YVRX	   YAKIMA VALLEY RAIL & STEAM MUSEUM
YVT	   YAKIMA VALLEY TRANSPORTATION CO.
YW         YREKA WESTERN RAILROAD CO.