Curtain Side Trailer Package!?!

Normally the “Radioactive–SCO” marking required in 49 CFR 173.427(a)(6)(vi) is placed on the outside of the package (or unpackaged object). So, can a curtain side style trailer be a package? Could this trailer meet the packaging closure and leakproof requirements for general design listed in 49 CFR 173.410 (including 173.24, 173.24a, 173.24b as applicable)? On another note, can you identify anything missing? … Are placards required for an exclusive use SCO shipment? Should those placards be visible on the outside of the conveyance? … Hopefully you said “yes” to placarding as required in 49 CFR 173.427(a)(6)(v) & 172 Subpart F.

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