1.  Convictions.  The licensing authority in the home state, for the purposes of suspension, revocation or limitation of the license to operate a motor vehicle, shall give the same effect to the conduct reported, pursuant to Article III of this compact, as it would if such conduct had occurred in the home state, in the case of convictions for:  

2.  Other convictions.  As to other convictions, reported pursuant to Article III, the licensing authority in the home state shall give such effect to the conduct as is provided by the laws of the home state.  

3.  Similar offenses.  If the laws of a party state do not provide for offenses or violations denominated or described in precisely the words employed in subsection 1 of this Article, the party state shall construe the denominations and descriptions appearing in subsection 1 as being applicable to and identifying those offenses or violations of a substantially similar nature and the laws of the party state must contain such provisions as may be necessary to ensure that full force and effect is given to this Article.