Form L orders must be written without which of the following?

Form L orders must be written without erasure. This requirement is in place to ensure clarity and accountability in communication among operating personnel. If erasure were permitted, it could create ambiguity about what the original order was and could lead to misunderstandings or safety risks.

When a command or order is issued, it needs to maintain its integrity and legibility to avoid any confusion in train and operations management. Allowing erasure could result in potential miscommunications, which is critical in a railroad environment where precision is paramount for safety and efficiency.

In contrast, while corrections can be made as needed, they typically require specific procedures such as using a proper correction mechanism (like striking out incorrect information and writing the correct information nearby). Similarly, notes might be attached to provide additional context to the orders; however, these should be done in a manner that doesn't compromise the original document's integrity. Handwritten alterations may be allowed if they follow protocol, as long as they are clear and do not obscure the original instruction. Therefore, maintaining the absence of erasure is vital for the reliability of Form L orders.