). ▁The ▁Fin ance ▁Act ▁details ▁am end ments ▁to ▁be ▁made ▁to ▁each ▁one ▁of ▁these ▁Act s . ▁ ▁References ▁ ▁Category : Un ited ▁Kingdom ▁Act s ▁of ▁Parliament ▁ 2 0 1 2 ▁Category : 2 0 1 2 ▁in ▁econom ics ▁Category : T ax ▁legisl ation ▁in ▁the ▁United ▁Kingdom <0x0A> </s> ▁In ▁October ▁ 2 0 0 6 , ▁the ▁United ▁States ▁Ge ological ▁Survey ▁( US GS ) ▁adopted ▁a ▁nation wide ▁alert ▁system ▁for ▁character izing ▁the ▁level ▁of ▁un rest ▁and ▁er upt ive ▁activity ▁at ▁vol cano es . ▁The ▁system ▁is ▁now ▁used ▁by ▁the ▁Al aska ▁Vol cano ▁Observ atory , ▁the ▁California ▁Vol cano ▁Observ atory ▁( Cal iforn ia ▁and ▁Nev ada ), ▁the ▁C asc ades ▁Vol cano ▁Observ atory ▁( W ashington , ▁Oregon ▁and ▁Id aho ), ▁the ▁Hawai ian ▁Vol cano ▁Observ atory ▁and ▁the ▁Y ellow stone ▁Vol cano ▁Observ atory ▁( Mont ana , ▁Wy oming , ▁Colorado , ▁Ut ah , ▁New ▁Mexico ▁and ▁Arizona ). ▁ ▁Under ▁this ▁system , ▁the ▁US GS ▁ranks ▁the ▁level ▁of ▁activity ▁at ▁a ▁U . S . ▁vol cano ▁using ▁the ▁terms ▁" normal ", ▁for ▁typical ▁vol can ic ▁activity ▁in ▁a ▁non - er upt ive ▁phase ; ▁" ad vis ory ", ▁for ▁elev ated ▁un rest ; ▁" watch ", ▁for ▁es cal ating ▁un rest ▁or ▁an ▁er u ption ▁under way ▁that ▁pos es ▁limited ▁ha z