TRIGGERED ICS

Safe:
    MC1000 - REPEATER
    MC1001 - NOT
    MC1017 - RISING TOGGLE
    MC1018 - FALLING TOGGLE
    MC1020 - RANDOM BIT
    MC1025 - REL TIME MOD 2
    MC1030 - INPUT EQUALS
    MC1050 - SELECTOR
    MC1111 - RECEIVER
    MC1230 - IS IT DAY
    MC1260 - WATER SENSOR
    MC1261 - LAVA SENSOR
    MC1262 - LIGHT SENSOR
    MC1263 - BLOCK SENSOR
    MC1270 - POWER SENSOR
    MC1271 - DETECTION
    MC1272 - P-DETECTION
    MC1280 - IS IT SUNNY
    MC1281 - IS IT RAINY
    MC1282 - IS IT STORMY
    MC2020 - 3-BIT RANDOM
    MC2100 - DELAYER
    MC2101 - NOT-DELAYER
    MC2110 - LOW DELAYER
    MC2111 - LOW NOT-DELAYER
    MC3000 - 2-INPUT AND
    MC3001 - 2-INPUT NAND
    MC3002 - 3-INPUT AND
    MC3003 - 3-INPUT NAND
    MC3020 - 2-INPUT XOR
    MC3021 - 2-INPUT XNOR
    MC3030 - RS NOR LATCH
    MC3031 - INV RS NAND LAT
    MC3032 - NEG JK-FF
    MC3033 - RS NAND LATCH
    MC3034 - D EDGE FLIPFLOP
    MC3036 - D LEVL FLIPFLOP
    MC3040 - MULTIPLEXER
    MC3101 - COUNTER
    MC4000 - FULL ADDER
    MC4010 - HALF ADDER
    MC4100 - FULL SUBTRACTOR
    MC4110 - HALF SUBTRACTOR
    MC4200 - DISPATCHER

Not-safe:
    MC1200 - MOB SPAWNER
    MC1201 - DISPENSER
    MC1203 - ZEUS BOLT
    MC1205 - SET BLOCK ABOVE
    MC1206 - SET BLOCK BELOW
    MC1207 - SET BLOCK
    MC1210 - SET P-DOOR
    MC1211 - SET P-BRIDGE
    MC1220 - BLOCK-REPLACER
    MC1231 - TIME CONTROL
    MC1232 - SET-TIME
    MC1240 - ARROW SHOOTER
    MC1241 - ARROW BARRAGE
    MC1285 - SET WEATHER
    MC1510 - MESSAGESENDER
    MC1511 - COMMANDSENDER
    MC3231 - TIME CONTROL
    MC8888 - SHOWVIEW (This may or may not be necessary, did some research and GeMo said he removed it, but might be worth it to put this in just to be safe. IF it won't cause permissions plug-in to throw errors that is.)

Not sure:
    MC2500 - PULSER
    MC2501 - NOT PULSER
    MC2510 - LOW PULSER
    MC2511 - LOW NOT PULSER

SELFTRIGGERED ICS

Safe:
    MC0020 - RANDOM BIT
    MC0111 - RECEIVER
    MC0230 - IS IT DAY
    MC0260 - WATER SENSOR
    MC0261 - LAVA SENSOR
    MC0262 - LIGHT SENSOR
    MC0263 - BLOCK SENSOR
    MC0270 - POWER SENSOR
    MC0271 - DETECTION
    MC0272 - P-DETECTION
    MC0280 - IS IT SUNNY
    MC0281 - IS IT RAINY
    MC0282 - IS IT STORMY
    MC0420 - CLOCK
    MC1110 - TRANSMITTER
    MC9999 - 3-BIT RANDOM

Not-safe:
    MC0232 - SET-TIME
    MC0285 - SET WEATHER