A sample joint defense and confidentiality agreement (JDA), which allows parties with common legal interests related to an external investigation by the government or a regulator to share information without waiving the attorney-client privilege, work product protection, or other applicable privilege or protection. This agreement may also protect against the disqualification of a party's counsel resulting from having received other parties' privileged information under the agreement. This Standard Document has integrated notes with important explanations and drafting tips.