As long as they not react dangerously with each other, dangerous goods and non-dangerous goods can be placed into one outer packaging as “All Packed in One”. For normal quantities, this provision is written at the top of DGR 126.96.36.199 where it reads: “An outer packagings may contain more than one item of dangerous goods or other goods provided that …..” and continues on to a), b), c), d), etc.
For Limited Quantity (LQ, LTD QTY), the same phrase appears at the top of DGR 188.8.131.52.
For Excepted Quantity (EQ), there is no direct statement, however there is no clause restricting non-dangerous goods into an “APIO”, and as it says in DGR 2.6.5 (f), you may put non-dangerous goods in a EQ overpack, it is concluded that there is no harm in putting non-dangerous goods in a EQ APIO.
With an All Packed in One package, you cannot mix CAO inners, PAX inners, LQ inners and EQ inners. All inners must be the same category. No mixing is permitted. This is because, the outer of CAO, PAX, LQ and EQ are all not common. Furthermore, as stated in DGR 184.108.40.206, since a DGD is not needed for EQ, it cannot be packed together with dangerous goods requiring a DGD.