Stop the EPA Act of 2014 - Amends the Congressional Review Act to require congressional approval of major rules issued by the Environmental Protection Agency (EPA). (Currently, rules go into effect unless Congress disapproves of the rule.) Nullifies EPA's existing major rules, unless the EPA submits them for congressional review.
Lowers the annual economic impact from $100 million to $50 million for a rule is deemed to be a major rule. Expands the criteria for an EPA regulation to be deemed a major rule to include that the regulation will have a significant impact on a substantial number of agriculture entities or it will implement a carbon tax.
Expands the EPA's reports to Congress and the Government Accountability Office (GAO) to include: a classification of each rule as a major or nonmajor rule with an explanation of the economic effects of the rule, related regulatory actions taken by EPA or another agency, and any jobs added or lost.
Allows Congress to consider approval of a major rule only once in a Congress. Gives Congress 70 session days or legislative days to approve a rule.
Requires the GAO to estimate the economic cost imposed by all of EPA's rules.