Context: The contracting parties' full names or sovereign titles are often included in the preamble, along with the full names and titles of their representatives, and a boilerplate clause about how their representatives have communicated (or exchanged) their full powers (i.e., the official documents appointing them to act on behalf of their respective states) and found them in good or proper form.

Question: What term describes a common clause in a treaty stating that the representatives of the parties have communicated their full powers?
Answer: boilerplate

Question: What are the official documents appointing a party's representative to act on their behalf?
Answer: full powers

Question: In addition to their full names, what else is included in the preamble that identifies the parties to a treaty?
Answer: sovereign titles

Question: How must the full powers of a parties' representatives be found in order to enter into a treaty?
Answer: in good or proper form.

Question: Who else besides the parties themselves is typically identified in the preamble to a treaty?
Answer: their representatives