For example , it has been required by Washington State law ( RCW 47.80. 030 ) for regional transport plans since July 1 , 1994 .
There has been a trend in the US towards making LCPM mandatory for regional transport plans .
It has been required by Washington State law ( RCW 47.80. 030 ) for regional transport plans since July 1 , 1994 .
There has been a trend in the US towards making LCPM mandatory for regional transport plans .