法律，即国家的法律体制改革，其为人口群创造了不同的政治、经济和社会条件。随着时间的推移，法律对社会结构产生缓慢渐进、或快速而革命的改变。
在游戏开始时，所有国家都拥有与1836年时代条件相对最适的法律。法律在不同国家间差别很大，且极大地影响着玩家在游戏过程中的环境和策略。
其他方面的不同影响与开局法律发生的相关作用，亦是维多利亚时代历史特征与有形社会存在所发生的相关作用。这会促使历史向着更熟悉的方向发展。
也就是说，开局法律并非一成不变，玩家可根据社会发展方向进行具体调整。
改变原因
Laws affect pops who live in the country currently, but will also limit which pops might migrate there -- few pops would make it their preference to move to a country where they're mistreated by law.
A common effect of laws is to modify some parameter about the country and even alter the effects of other parts of your society. Additionally, they can also permit or disallow the use of certain actions.
Another reason to change laws is because the people have demanded it. Laws influence how much political strength pops provide to interest groups. As a result, different groups of pops approve 
more or 
less of the society the player has built depending on their economic well-being, and their demands for change is more or less intimidating depending on how many and how strong they are.
The player may choose to placate an angry group, or further benefit an already content group for extra benefits. But in doing so, some other group will become displeased. Reforming existing laws to work more in accordance with the powerful interest groups' ideologies is a quick way to win their approval, permitting more leeway to go against their wishes in the future or as a quick pick-me-up in case their standard of living has recently taken a hit. Of course, the inverse is also true, and laws can be used to purposely anger and reduce the power of interest groups.
制定法律
Enacting a law is not an instantaneous, one-click affair.
Any reform must be supported by at least one interest group in the government who can champion the change. Interest groups have ideologies and an approval score that lead them to favor certain laws over others. While broader coalitions of interest groups in government give more options of laws to enact, it also complicates getting them passed.
Once a reform has begun it can be a smooth process that's over in a matter of months, or it can take years of grueling debate and stalling tactics in parliament, causing them to take more effort than they're worth. While the default time to pass a law is 
180 days, the actual amount of time it takes depends both on the government's 
legitimacy in the eyes of the people, and also on the clout of the interest groups in the government that support and oppose the new law relative to the one it's replacing.
法律类别
法律有三大类，每类有七个子类别，其本身包含多达六种具体的法律选项。
尽管法律之间完全相互独立，但在某些子类别中，玩家不可能直接上天下海——须得小火慢炖，先脚踏实地改制中庸，尔后循序渐进改制到另一个极端。
权力结构法律
- 主条目：权力结构法律
- 军队类型 - 军队的组织和管理方式。
- 官僚体制 - 如何管理你的国家。
- 教会与国家 - 身体的统治者与精神的统治者之间的关系。
- 公民权 - 扩展公民权。
- 治理原则 - 国家治理的基本原则与权威。决定了什么人是国家元首。
- 权力分配 - 政治权力是如何被分配的。这决定国家元首对谁负责。
- 国内安全 - 保持国内有序。
经济法律
- 主条目：经济法律
- 殖民机构 - 你对于建立殖民地以取代和征服松散部族的立场。
- 经济体制 - 经济的基本原则。
- 教育体制 - 为孩子们做完扫烟囱的家务后的准备。
- 卫生系统 - 关于政府是否参与为公民提供医疗保健的法律。
- 警察机构 - 国家警察部队的优先度。
- 赋税 - 国家如何通过对其公民征税以获得税收。
- 贸易政策 - 管辖贸易和跨境商品交换的法律。
人权法律
- 主条目：人权法律
- 儿童权利 - 赋予儿童的权利与保障措施。
- 言论自由 - 相关法律对言论自由和公共集会权利进行了规定。
- 劳动者权益 - 工人权利。
- 移民制度 - 控制人口流动。
- 女性权利 - 针对女性的法律规制。
- 奴隶制 - 把人当作财产。
- 社会福利 - 政府对于低收入贫民的帮助。
参见
- To update page content see reference files in folder Victoria 3\game\common/laws:
- Each law type has its own
txtfile (named after the law type).
- Each law type has its own
- To update flavor text see reference files in folder Victoria 3\game\localization/english:
- For laws flavor text see reference file laws_l_english.yml.
- For modifiers flavor text see reference file modifiers_l_english.yml.
- For institutions flavor text see reference file institutions_l_english.yml.
- For inventions flavor text see reference file inventions_l_english.yml.