Governor Linda Lingle vetoed a civil union law in 2010. Governor Neil Abercrombie signed the same legislation on February 23, 2011, the first law he signed as governor. The law went into effect on January 1, 2012.

In 1997, the state established reciprocal beneficiary relationships, open to all couples as well as blood relatives, offering numerous spousal rights including the ability to sue for wrongful death, decisions about health care, proptery rights and co-tenancy, inheritance without a will, and insurance and state pensions.

Until 1997, there was no legal recognition provided to same-sex couples in Hawaii, although there was also no known law explicitly banning marriage.

In 1963, Hawaii amended its Penal Code to prohibit people from "wearing clothing of the opposite sex with intent to deceive other people in identifying their sex" with up to a year in prison as punishment. Commonly referred to as the "intent to deceive" law, the law in practice criminalise the gender expression of transgender people in Hawaii with several trans women being forced to wear pins saying "I AM A BOY" to avoid arrest while humiliating them in the process. The law would be repealed in 1972, effective 1973.

In 1994, Hawaii provided for legal gender recognition but required proof of surgery.

Until 1994, there was no legal gender recognition provided in Hawaii.

Before 2020, Hawaii did not legally recognize a third gender.

Any adult may petition, and married and civil union-ed couples must petition jointly per Revised Statute §578-1.

The status is ambiguous because second-parent adoption for same-sex couples varies by judge and county, and no decision by the lower court has been approved by case law in appellate court, nor by state statute.

On the evening of March 18th, U.S. District Judge Ana Reyes blocked the implementation of Trump's executive order banning transgender people from the military. The judge said that not only was the order unconstitutional but “a solution in search of a problem.”.

On January 27th, 2025, President Trump signed an executive order that bans transgender people from serving in the military.
On February 10th, 2025, Secretary of Defense Pete Hegseth filed in court a memo relating to President Trump’s executive order from the previous month.

From then until March 18th, 2025, The U.S. military prohibited transgender individuals from enlisting and ceased providing or supporting gender transition procedures for service members.

In 2021, former President Joe Biden removed then-former President Donald Trump’s ban on transgender people serving in the military.

The Trump administration enacted a new policy barring individuals with a "condition" known as "gender dysphoria." from serving in the military.

In 2011, "Don't Ask, Don't Tell" was repealed by the Obama Administration. Former President Obama allowed members who were dishonorably discharged under DADT, to receive an honorable discharge.

Don't Ask, Don't Tell was the historic compromise signed by President Bill Clinton authorizing people who are LGBT to serve in the military provided they didn't disclose sexuality. The law also removed the ability for others in the military from asking for a service member's orientation.

From May 19, 1941 until September 20, 2011, LGB people were banned from enlistment and service in the United States Army, US Coast Guard, US Marine Corps, and US Navy, and, beginning September 18, 1947, in the Air Force. From October 1, 1982, to September 19, 2011, when homosexuality was the sole basis for separation and no aggravating circumstances were present, the characterization of service was determined by the member’s overall record and could be Honorable or General (under honorable conditions), with entry-level cases receiving an uncharacterized separation.

By May 17, 1963, in the United States Army; by 1982, in the United States Air Force; from March 31, 1986, on a U.S. Department of Defense-wide accession basis covering the United States Army, United States Navy, United States Marine Corps, and, by agreement, the United States Coast Guard; by August 12, 2005, in the United States Navy and United States Marine Corps; and by April 29, 2011, in the United States Coast Guard, transgender people were banned from enlistment and service until open service was authorized on June 30, 2016.

By February 22, 1956, in the United States Coast Guard; by February 10, 1961, in the United States Army; by January 11, 1962, in an Air Force-specific accession standard; from March 31, 1986, on a Department of Defense-wide accession basis covering the Army, Navy, Marine Corps, Air Force, and, by agreement, the Coast Guard; and, from December 20, 2019, in the United States Space Force through inherited Air Force and DoD standards, applicants with intersex-related conditions identified in military rules as “hermaphroditism,” and later as “hermaphroditism, pseudohermaphroditism, or pure gonadal dysgenesis,” were disqualified from accession under military medical standards.

The FDA announced changes to the blood donor eligibility policy in April 2020, reducing the MSM deferral period from 12 months to 3 months. The change came amid the beginning of the COVID-19 pandemic, where blood was needed urgently.

After a series of recommendations, the FDA has moved to a 12 months deferral.

Starting in 1983, the United States implemented a full ban on blood donations from gay men. The primary justification for the ban was the perceived high risk of HIV transmission, with health regulators identifying men who have sex with men (MSM) as a significant risk to the safety of the blood supply.

Conversion Therapy is currently legal. No law currently bans it, despite organizations such as the American Psychological Association denouncing it.

In 1973, Hawaii legalized homosexuality but gave it a higher age of consent to that of heterosexuality.