The following is incorrect:
"Body A does not give any warranty as to [...], neither does body B give any such warranty to body C"
This is because neither is being used as a conjunction to concatenate an independent sentence with a dependent sentence in that order. Neither is not a conjunction. It is either an adverb or a determiner/pronoun.
The following is correct: "Body A does not give any warranty as to [...] to body B, nor does body B give any such warranty to body C"
Nor is being used as a conjunction in this case. Wikipedia says In grammar, a conjunction [...] is a part of speech that connects words, sentences, phrases, or clauses.
Since conjunctive adverbs were mentioned, I will mention its usage.
Conjunctive adverbs are hardly anything other than adverbs. Note the following example: Johnny shouldn't be acting rudely; however, he had a poor upbringing... In this case, however is a conjunctive adverb; however, it is still being used as a regular adverb.
What it comes down to is the semi-colon. It is separating two sentences, and the second sentence begins with an adverb.