Book II contains the whole collection of basic treaties, in their original versions, and those treaties which successively amended the basic treaties (Volume I), together with instruments relating to the various accessions to the Communities (Volume II).
Tá le fail i Mórleabhar II cnuasach iomlán na dtéacsanna bunaidh ina leaganacha bunaidh agus na gconarthaí a rinne iad a leasú as éadan a chéile (Imleabhar I) mar aon leis na hionstraimi a bhaineann leis na haontachais éagsúla do na Comhphobail (Imleabhar II).