Final answer:
Different forms can be used for initial safety briefings, including the Principles of Biosafety Evaluation and Student Affirmation form and checklists.
Step-by-step explanation:
For initial safety briefings, different forms can be used depending on the context and requirements. One common form is the Principles of Biosafety Evaluation and Student Affirmation form, which is used to assess understanding and document biosafety training. Another option is to use a checklist, which is a method commonly used to reduce accidents in various industries, such as the airline industry and medical facilities.