Maine Revised Statutes
Part 6: BREACH, REPUDIATION AND EXCUSE
11 §2-606. What constitutes acceptance of goods

§2-606. What constitutes acceptance of goods
(1).  Acceptance of goods occurs when the buyer  
(a). After a reasonable opportunity to inspect the goods signifies to the seller that the goods are conforming or that he will take or retain them in spite of their nonconformity; or  
(b). Fails to make an effective rejection (section 2‑602, subsection (1)), but such acceptance does not occur until the buyer has had a reasonable opportunity to inspect them; or  
(c). Does any act inconsistent with the seller's ownership; but if such act is wrongful as against the seller it is an acceptance only if ratified by him.  
(2).  Acceptance of a part of any commercial unit is acceptance of that entire unit.