The Office of Emergency Health Hazard Assessment (California) has announced that the Office of Administrative Law has given final approval to the extensive revisions of what constitutes clear and reasonable warning under Proposition 65. You can find OEHHA's announcement here: http://oehha.ca.gov/proposition-65/crnr/notice-adoption-article-6-clear-and-reasonable-warnings.
Importantly, the announcement notes: "The regulation will be operative on August 30, 2018. In the interim, businesses may comply with the regulation in effect on August 30, 2016, or the provisions of the new regulation. This will allow for a reasonable transition period for businesses to begin providing warnings under the new provisions."