united-states
Is it illegal in any state in the USA to enter a restroom whose sign is not one&#39;s sex?
<p>As a trans person in the USA, I'm very worried about this. When I'm halfway through transition, will I be arrested for using either restroom?</p>

<p>Yes, it is illegal in <strong>North Carolina</strong>, which defines your sex as what's on your birth certificate.  At any point in your transition, even when it's long complete, you'll still have to use the restroom for the gender on your birth certificate (hypothetically assuming the law is still in place).  See e.g. <a href="http://www.cnn.com/2016/03/23/politics/north-carolina-gender-bathrooms-bill/" rel="nofollow">this CNN coverage</a> and <a href="http://www.cnn.com/2016/03/29/health/north-carolina-bathroom-law-cards/" rel="nofollow">this followup</a>.</p>

<p>Will you actually be arrested?  Probably only if there's a complaint. <a href="http://www.motherjones.com/politics/2016/04/north-carolina-lgbt-bathrooms-hb2-enforcement" rel="nofollow">The police haven't yet figured out how they're supposed to enforce this law</a>. </p>
