The differences are well under a meter most places in the US and are caused by a slight difference in the constants used in the calculations as developed by the different agencies administering the datums.
(The differences; are; well under a meter) (The differences; are caused; by a slight difference in the constants) (the constants; used; L:in the calculations) (the calculations; developed; by the different agencies) (the different agencies; administering; the datums)
The differences The differences the constants the calculations the different agencies
are are caused used developed administering
well under a meter
by a slight difference in the constants
L:in the calculations
by the different agencies
the datums