Which of the following is an outcome of the revisions to DAO 2000-18?

• A. Phase-out accelerated without schedules
• B. Reduced reporting requirements
• C. Strengthened controls and revised schedules
• D. Abolished ozone protection measures

Answer: (C)

The revisions aim to strengthen how the program is enforced and to update the timeline for phasing out ozone-depleting substances. In regulatory practice, updates like this tighten controls—strengthening licensing, import/export screening, compliance monitoring, and penalties—and revise the schedules so the phase-out aligns with current international commitments and domestic capabilities. That combination is exactly what improves ozone protection and ensures the rules stay effective over time. The other options conflict with the purpose of an update: it’s not about removing protections, reducing oversight, or skipping scheduled timelines, but about tightening controls and updating the schedule for elimination.