Factions provides you with several advantages, from exclusive ships to protection in their space. Choosing wisely is important, but luckily, you don't have to be exclusively devoted to one!

In Factions like the Federation, Romulan, and Klingon, your reputation can decrease or increase depending on specific actions in the game (choosing the wrong side in a mission, killing your faction's ships in their space, etc.)

In the Factions above, there are five reputation locks at 10M points, 1B points, 15B points, 500B points and 450,000B points. Once you reach a Reputation Lock, your reputation will not go below that Lock. This provides a unique advantage when you want to increase your reputation in other Factions.

On the other hand, the Augment, Outlaw and Bajoran Reputation behave differently. They do not have Faction Locks, but your Reputation cannot be lowered. Please find the Reputation guide below:
 
Federation, Klingon and Romulan Faction Loyalty Breakdown
TierRankRange (Points)
1Enemy-2,000000 / -500,000
2Hostile-500,000 / -25,000
3Untrustworthy-25,000 / -500
4Neutral-500 / 500
5Tolerated500 / 5,000
6Neighbor5,000 / 25,000
7Friendly25,000 / 100,000
8Favored100,000 / 500,000
9Consort500,000 / 2,000,000
10Associate2,000,000 / 10,000,000
11Respected10,000,000 / 30,000,000
12Celebrated30,000,000 / 50,000,000
13Admired50,000,000 / 80,000,000
14Esteemed80,000,000 / 140,000,000
15Commended140,000,000 / 440,000,000
16Glorified440,000,000 / 1,000,000,000
17Champion1,000,000,000 / 1,100,000,000
18Distinguished1,100,000,000 / 1,500,000,000
19Guardian1,500,000,000 / 2,400,000,000
20Leader2,400,000,000 / 4,400,000,000
21Pioneer4,400,000,000 / 8,100,000,000
22Icon8,100,000,000 / 15,000,000,000
23Legend15,000,000,000 / 15,000,000,500
24Dignitary17,000,000,000 / 43,000,000,000
25Renowned43,000,000,000 / 93,000,000,000
26Venerated93,000,000,000 / 182,000,000,000
27Revered182,000,000,000 / 315,000,000,000
28Idolized315,000,000,000 / 500,000,000,000
29Hero500,000,000,000 / 500,000,000,500
30Prestige I9,000,000,000,000/ 25,000,000,000,000
31Prestige II25,000,000,000,000/ 50,000,000,000,000
32Prestige III50,000,000,000,000/100,000,000,000,000
33Prestige IV100,000,000,000,000/200,000,000,000,000
34Prestige V200,000,000,000,000/450,000,000,000,000
35Prestige VI450,000,000,000,000/450,000,000,000,000

Noteworthy Milestones:

Tier 3 - Faction Store Unlocks
Tier 10 - Faction Lock
Tier 16 - Faction Lock
Tier 22 - Faction Lock
Tier 28 - Faction Lock
Tier 35 - Faction Lock