Lower than standard takeoff mins

[pilotyip]

You can only apply C-78 to standard take off mins of 1 SM for 2 eng airplanes and 1/2 SM for more than two eng. If anything is published that is different than standard T/O mins those apply. For instance a runway has T/O mins of 300' and 1 SM. Even though the 1 SM is std, the 300' ceiling is non-standard, therefore the T/O mins on that runway is one SM and 300' ceiling. In this case RVR 2400 in non-standard, it applies.