# 500T Master to 1600T Master upgrade

**URL:** <https://forum.gcaptain.com/t/500t-master-to-1600t-master-upgrade/14728>\
**Category:** 500 Ton Master Upgrade\
**Created:** [May 2, 2015, 8:22pm UTC](https://forum.gcaptain.com/t/500t-master-to-1600t-master-upgrade/14728 "2015-05-02T20:22:05Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Shackle](https://avatars.discourse-cdn.com/v4/letter/s/e19b73/32.png) [@Shackle](https://forum.gcaptain.com/u/Shackle)\
**Post date:** [May 2, 2015, 8:22pm UTC](https://forum.gcaptain.com/t/500t-master-to-1600t-master-upgrade/14728/1 "2015-05-02T20:22:05Z")

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I obtained a 500-T Master / Master Of Towing under the “towing personnel shortcut” and was told I could simply turn in an application and would automatically receive the upgrade to 1600-T Master. True? ( Hard to get a straight answer. Thank you.)

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**Author:** ![water](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.gcaptain.com/water/32/131_2.png) [@water](https://forum.gcaptain.com/u/water)\
**Post date:** [May 3, 2015, 7:11pm UTC](https://forum.gcaptain.com/t/500t-master-to-1600t-master-upgrade/14728/2 "2015-05-03T19:11:04Z")

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I don’t know about towing, but in the past a Master 500 NC or Oceans could upgrade to Master 1600 with additional sea time only. Check the NMC website checklists for deck offices.

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**Author:** ![z-drive](https://avatars.discourse-cdn.com/v4/letter/z/c37758/32.png) [@z-drive](https://forum.gcaptain.com/u/z-drive)\
**Post date:** [May 3, 2015, 8:23pm UTC](https://forum.gcaptain.com/t/500t-master-to-1600t-master-upgrade/14728/3 "2015-05-03T20:23:05Z")

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Yeah except you have to have the proper days as mate/master towing, I think, need to double check. Not that automatic. And is there a limit on how many transactions you can do under the old rules/new rules? You may have used that chance up with the MOT shortcut? Maybe not, just asking rhetorical questions.

Here you go:

MASTER LESS THAN 1600  
…

"360 days of service as master/mate or master/mate T/V’s on Ocean or Near Coastal waters on vessels of more than 100 GRT while holding a license or MMC as mate less than 1600 GRT OC or master/ mate T/V’s. "

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**Author:** ![Shackle](https://avatars.discourse-cdn.com/v4/letter/s/e19b73/32.png) [@Shackle](https://forum.gcaptain.com/u/Shackle)\
**Post date:** [May 4, 2015, 8:11am UTC](https://forum.gcaptain.com/t/500t-master-to-1600t-master-upgrade/14728/4 "2015-05-04T08:11:15Z")

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Roger that gentlemen! I appreciate the help.