The List of Categories of New Golf Rules for 2019
1. Ball in play
2. Taking Relief
3. Specific areas
4. Equipment
5. Make a stroke
6. Promoting Faster Pace of Play
7. Code of Conduct and Player Integrity
We have organized all the changes based on the category following the official changes mentioned in the website of USGA. Some changes might fall into different categories. But if one is already described in one category based on the most reflective scope of change, we will prefer to avoid in other categories to make the article concise.
Here is an infographic for you: