The creation of any obstruction, not affirmatively authorized by law, to the navigable waters, in respect of which the United States has jurisdiction, is hereby prohibited. a. True b. False

Question 96:
This question refers to 33 USC Chap. 9, Section 403 (often referred to as 403a in some contexts, but the core statute is 33 U.S. Code § 403). The text states: "The creation of any obstruction, not affirmatively authorized by law, to the navigable capacity of any waters, in respect of which the United States has jurisdiction, is hereby prohibited." This statement is a direct quote from 33 U.S. Code § 403, which prohibits unauthorized obstructions to navigable waters. Therefore, the statement is accurate.

The final answer is $\boxed{\text{a) True}}$