(2) A licensed site professional shall render a waste site cleanup activity opinion only when the LSP has either:

1. (a) in the case of an opinion related to an assessment:

   1. 1. managed, supervised or actually performed such assessment, or
   2. 2. periodically reviewed and evaluated the performance by others of such assessment; or

2. (b) in the case of an opinion related to a containment or removal action:

   1. 1. managed, supervised, or actually performed such action, or
   2. 2. periodically observed the performance by others of such action.

(3) In providing professional services, a licensed site professional shall:

1. (a) exercise independent professional judgment;
2. (b) follow the requirements and procedures set forth in applicable provisions of M.G.L. c. 21E, and 310 CMR 40.0000: Massachusetts Contingency Plan;
3. (c) make a good faith and reasonable effort to identify and obtain the relevant and material facts, data, reports and other information evidencing conditions at a site that the LSP’s client possesses or that is otherwise readily available, and identify and obtain such additional data and other information as the LSP deems necessary to discharge the LSP’s professional obligations under M.G.L. c. 21A, §§ 19 through 19J, and 309 CMR; and
4. (d) with regard to the rendering of waste site cleanup activity opinions, disclose and explain in the waste site cleanup activity opinion the material facts, data, other information, and qualifications and limitations known by the LSP which may tend to support or lead to a waste site cleanup activity opinion contrary to, or significantly different from, the one expressed.

(4) If a licensed site professional identifies a release or threat of release that in the LSP’s professional judgment poses or could pose an Imminent Hazard as described in 310 CMR 40.0321: Reporting of Releases and Threats of Release That Pose or Could Pose an Imminent Hazard at a particular site at which the LSP is providing Professional Services, the LSP shall:

1. (a) immediately advise the LSP’s client of the need to notify the Department of the Imminent Hazard; and
2. (b) notify the Department of the imminent hazard no later than 24 hours after identifying such, unless the client has provided such notice.

(5) If, in the course of providing Professional Services, a licensed site professional obtains knowledge of a condition:

1. (a) on a property, known by the LSP to be owned or operated by the client, that either

   1. 1. contains all or a portion of the disposal site for which the LSP has been retained or
   2. 2. is contiguous to a property, known by the LSP to be owned or operated by the client, that contains all or a portion of the disposal site for which the LSP has been retained, and
2. (b) that the LSP, in the exercise of the LSP’s professional judgment, considers to require notification to the Department within either two or 72 hours, then the LSP shall promptly notify the client in writing of the existence of the condition.

(11) Applicants and licensed site professionals shall cooperate fully in the conduct of investigations by the Board by promptly furnishing, in response to formal requests, orders or subpoenas, such information as the Board, or persons duly authorized by the Board, deems necessary to perform its duties under M.G.L. c. 21A, §§ 19 through 19J. In connection with the investigation by the Board of applications or disciplinary complaints, an LSP shall not:

1. (a) knowingly make a false statement of material fact;
2. (b) fail to disclose a fact necessary to correct a material misunderstanding known by the LSP to have arisen in the matter;
3. (c) knowingly and materially falsify, tamper with, alter, conceal, or destroy any document, data record, remedial system, or monitoring device that is relevant to the investigation, without obtaining the Board’s permission; or
4. (d) knowingly allow or suffer any of the LSP’s employees, agents, or contractors to do any of the foregoing.

(12) An LSP who is involved in a management or review capacity at a disposal site will be considered responsible, along with a second LSP, for the second LSP’s violation of the Board’s Rules of Professional Conduct set forth in 309 CMR 4.00 if the LSP:

1. (a) orders, directs, or formally ratifies Professional Services or an Opinion being conducted or prepared by the second LSP;
2. (b) recognizes that the Professional Services and/or Opinion violate an obligation or prohibition contained in the Rules of Professional Conduct; and
3. (c) fails to take reasonable steps to attempt to avoid or mitigate this violation.

(16) In describing the LSP’s qualifications, experience, or ability to provide Professional Services, an LSP shall not knowingly:

1. (a) make a material misrepresentation of fact or law;
2. (b) omit a fact necessary to make the description, when considered as a whole, not materially misleading; or
3. (c) make a statement that in the Board’s opinion is likely to create an unjustified expectation about results the LSP can achieve, or state or imply that the LSP can achieve results by means that violate the Massachusetts Contingency Plan, the Rules of Professional Conduct contained in 309 CMR 4.00, or other law.