Index: trunk/data/validator/numeric.mapcss
===================================================================
--- trunk/data/validator/numeric.mapcss	(revision 8701)
+++ trunk/data/validator/numeric.mapcss	(revision 8725)
@@ -82,5 +82,5 @@
 }
 *[maxweight][maxweight !~ /^(([0-9]+\.?[0-9]*( (t|kg|lbs))?)|([0-9]+\'[0-9]+\.?[0-9]*\"))$/] {
-  throwWarning: tr("{0}: meters is default; period is separator; if units, put space then unit", "maxweight");
+  throwWarning: tr("{0}: tonne is default; period is separator; if units, put space then unit", "maxweight");
   assertMatch: "way maxweight=something";
   assertMatch: "way maxweight=-5";
@@ -106,4 +106,13 @@
   assertNoMatch: "way maxspeed=none";
   assertNoMatch: "way maxspeed=variable";
+}
+
+*[distance][distance !~ /^(([0-9]+\.?[0-9]*( (km|mi|nmi))?)|([0-9]+\'[0-9]+\.?[0-9]*\"))$/] {
+  throwWarning: tr("{0}: kilometers is default; period is separator; if units, put space then unit", "distance");
+  assertMatch: "way distance=something";
+  assertMatch: "way distance=-5";
+  assertNoMatch: "way distance=2";
+  assertNoMatch: "way distance=2.5";
+  assertNoMatch: "way distance=7 mi";
 }