To request repetition of the second to fifth groups, C3 would send: F5 DE C3 IMI 2 TO 5 K F5 would send: C3 DE F5 2 to 5-YAMXZ-HINLP-MMIAP-YSBOU K To request repetition of the second and fourth to seventh groups, C3 would send: F5 DE C3 IMI 2-4 to 7 K F5 would send: C3 DE F5 2-YAMXZ-4 TO 7-MMIAP-YSBOU-QWJFD-LJGFX K In plain language messages, portions of the text are identified as words rather than numbered groups. The prosigns WA and WB are used as appropriate. VERIFICATIONS During certain conditions, addressees of a message may wish to verify with the originator either the entire message or a portion of it. This can be done with the use of a service, abbreviated service, or formal message. However, only the addressee may request a verification, and the reply must be authorized by the originator. Operators are not permitted to originate a request for a verification or reply thereto. In most cases, a message will be receipted for before the need for a verification becomes evident. In those cases where it is apparent, prior to receipting for a message, that a verification will be required, verification may be requested at once instead of first receipting for the message. The prosign J after a call and followed by identification data, when necessary, means with the originator and repeat message or indicated.” Examples: Message: D3 DE A2 -R-211355Z MAR 96 “Verify portion -FM A2 -TO D3 -INFO W7 B T CHANGE COURSE WHEN READY. DO NOT CHANGE SPEED. BT K To request verification and repetition of the entire message, D3 would send: A2 DE D3 J 211355Z MAR 96 K A2 would verify the message with the originator and if correct as previously sent would repeat the entire message. To request verification and repetition of the heading, D3 would send: A2 DE D3 J 211355Z MAR 96 AB BT K A2 would verify with the originator and then reply: D3 DE A2 C 211355Z MAR 96 AB BT D3 DE A2 -R-211355Z MAR 96 -FM A2 -TO D3 -INFO W7 BT K EXECUTIVE METHOD The executive method is used when it is desired to execute a signal at a certain instant; for example, to ensure that two or more units take action at the same moment. Although the executive method normally is associated with signals from a signal book, it may be used when appropriate for plain language. There are two types of executive methods: 1. Delayed executive method 2. Immediate executive method Tactical signals may be sent by flashing light. When the OTC uses that method, however, the 4-8