The ratification of the Convention on the Rights of Persons with Disabilities (CRPD) and its Optional Protocol (OP) by Afghanistan on 18 September 2012, bring a total of 126 States Parties to the CRPD, while the OP has 76 ratifications.
The number of signatures to the CRPD is 154 while the OP has 91 signatures.
List of signatories and States Parties:
CRPD: http://treaties.un.org/Pages/ViewDetails.aspx?src=TREATY&mtdsg_no=IV-15&chapter=4&lang=en
OP: http://treaties.un.org/Pages/ViewDetails.aspx?src=TREATY&mtdsg_no=IV-15-a&chapter=4&lang=en