Objective A: Reduce pollution during plastic production.
Objective B: Improve post-use materials management.
Objective C: Prevent trash and micro/nanoplastics from entering waterways and remove escaped trash from the environment.

Some of the notable suggested actions include:

• Eliminating (aka banning) common littered, single use plastics
• Providing funding to improve composting for “compostable” plastics
• Pushing extended producer responsibility which makes manufacturers responsible for collecting products for recycling at their end of life
• Requiring the Federal Government, the largest purchaser, to choose preferable products to create market demand
• Standardizing measurement of microplastics in air, water and oceans

The Biden administration is already issuing executive orders related to this strategy, which of course, can be undone by future administrations.

Source: How the US is preparing for an international Plastics Treaty – Darcy Hitchcock