When parties enter mediation, they are often at a difficult stage in a dispute. The issues may involve personal injury, financial loss, employment conflict, contract claims, consumer disputes, or other civil litigation matters. By that point, the parties have usually already exchanged demands, defenses, discovery, and solidified their arguments.
Mediation offers something different: a private setting for candid discussion, practical problem-solving, and the possibility of resolution without the cost and uncertainty associated with ongoing litigation.
For mediation to work, however, parties must feel free to speak honestly. That is where California’s mediation confidentiality scheme becomes so important. California has codified those protections in Evidence Code sections 1115 through 1129. See Cal. Evid. Code §§ 1115–1129.
What Counts as Mediation in California?
California’s mediation protections apply to a qualifying mediation. Under Evidence Code section 1115(a), mediation means “a process in which a neutral person or persons facilitate communication between the disputants to assist them in reaching a mutually acceptable agreement.” Cal. Evid. Code § 1115(a).
California courts have also recognized that mediation is fundamentally voluntary. See, Jeld-Wen, Inc. v. Superior Court (2007) 146 Cal.App.4th 536. (“The essence of mediation is its voluntariness.”)
That voluntary, confidential setting allows parties to explore settlement realistically, without turning every statement into potential trial evidence. Exploring pragmatic solutions for the attorneys’ clients can take priority, while the burden of proving one’s claims or defenses can be put on pause during the mediation.
What the Mediation Privilege Protects
California’s core confidentiality rule is found in Evidence Code section 1119. See Cal. Evid. Code § 1119. In general, that statute protects:
- anything said for the purpose of, in the course of, or pursuant to mediation or a mediation consultation, Cal. Evid. Code § 1119(a);
- writings prepared for the purpose of, in the course of, or pursuant to mediation or a mediation consultation, Cal. Evid. Code § 1119(b); and
- communications, negotiations, and settlement discussions between participants during mediation or a mediation consultation, Cal. Evid. Code § 1119(c).
The practical result is simple: what is said or created for mediation is generally not admissible and cannot ordinarily be discovered later in civil litigation. See Cal. Evid. Code § 1119; Foxgate Homeowners’ Assn. v. Bramalea California, Inc., 26 Cal. 4th 1, 14–15 (2001) [“Neither a mediator nor a party may reveal communications made during mediation.”]; Simmons v. Ghaderi 44 Cal.4th at 585–88 (2008).
This protection is especially important in personal injury, employment, consumer, and other civil matters, where settlement discussions often involve candid assessments of risk, damages, liability, and other practical concerns.
Mediation Consultations Are Protected Too
California’s protections are not limited to the formal mediation session itself. They also extend to mediation consultations, meaning communications made for the purpose of initiating, considering, or reconvening a mediation. See Cal. Evid. Code §§ 1115, 1119.
That matters because many meaningful settlement discussions happen before the parties ever sit down together. California law protects those mediation-related communications as well.
The Mediator Does Not Become a Witness
Another important feature of California’s mediation framework is that the mediator does not become a source of evidence about what happened in the process.
Under Evidence Code section 1121, a mediator generally may not submit reports, evaluations, recommendations, or findings concerning the mediation to a court or other adjudicative body. Cal. Evid. Code § 1121.
In practical terms, this means a mediator is not there to later explain who said what, who was more reasonable, or how negotiations unfolded. Instead, the mediator’s role is to help the parties communicate, explore solutions from a different perspective, and assist them in achieving their desired compromise.
Mediation Is Not the Same as a Court Settlement Conference
It is also important not to confuse mediation with every settlement discussion that may occur in a litigation case. California’s mediation confidentiality statutes apply to a qualifying mediation under the Evidence Code. See Cal. Evid. Code §§ 1115–1129.
By contrast, section 1117 provides that those provisions do not apply to certain settlement conferences. Cal. Evid. Code § 1117. That distinction can matter when determining what may later be disclosed or used in court.
Existing Documents Do Not Become Privileged Just Because They Were Shared
One common misconception is that mediation confidentiality makes all evidence discussed in mediation disappear. It does not.
If a document already existed before mediation, it does not automatically become confidential just because it was shared during mediation. The privilege is aimed at mediation communications and writings prepared for mediation, not at transforming preexisting documents into protected material simply because they were discussed in settlement. See Cal. Evid. Code § 1119.
That is an important distinction for litigants and counsel alike. Mediation confidentiality is broad, but it is not a blanket eraser for evidence that already exists outside the mediation context.
Written Settlements Must Be Drafted Carefully
When mediation leads to resolution, the goal is not just peace in principle, but an agreement that can actually be enforced.
That is where Evidence Code section 1123 becomes especially important. A written settlement agreement prepared in the course of, or pursuant to, mediation is not made inadmissible if the statutory requirements are satisfied. Cal. Evid. Code § 1123.
For that reason, parties should make sure any mediated settlement is reduced to a properly worded written agreement that clearly reflects the parties’ intent. See Simmons, 44 Cal. 4th at 584–85.
When Mediation Ends Matters
California law also explains when mediation ends. Under Evidence Code section 1125, mediation may end when the parties execute a written settlement agreement, when they make an oral agreement under the statute’s requirements, when the mediator sends a signed termination statement, when a party gives written notice ending the mediation, or when 10 calendar days pass without mediation-related communication between the mediator and any participant. Cal. Evid. Code § 1125.
This matters because confidentiality protections are tied to the mediation process itself, and the timing of when mediation ends can affect how the statutes apply.
Confidentiality Continues After the Mediation Ends
Even after mediation concludes, California’s protections do not simply disappear. Evidence Code section 1126 preserves the confidentiality and inadmissibility of protected mediation communications and writings even after the mediation has ended. Cal. Evid. Code § 1126.
That continuity is one reason California mediation is so effective. Participants can engage fully in the process knowing that the protection does not vanish the moment the session ends.
Narrow Exceptions Exist, But They Are Limited
California treats mediation confidentiality seriously, and exceptions are narrow. The California Supreme Court has repeatedly emphasized that mediation confidentiality is strictly enforced. See Foxgate, 26 Cal. 4th at 14–17; Simmons, 44 Cal. 4th at 581–88; Cassel v. Superior Court, 51 Cal. 4th 113, 117–19, 133–35 (2011).
In practice, that means parties should not assume they can later disclose mediation communications simply because a dispute becomes contentious or because one side regrets how a settlement unfolded.
Why This Matters for Civil Litigants
For people involved in personal injury, consumer protection, employment, and other civil disputes, mediation often offers a practical path forward. It can help the parties resolve claims faster, reduce litigation costs, and avoid the uncertainty of trial.
California’s mediation confidentiality scheme is what makes that process work. By protecting the privacy of the discussion, it gives parties space to speak candidly, evaluate compromise realistically, and explore resolution without fear that their words will be used against them later.
Conclusion
Mediation is most effective when the process is trusted. California’s mediation confidentiality laws provide that trust by protecting settlement discussions, mediator communications, and mediation-related writings. See Cal. Evid. Code §§ 1115–1129.
For clients and attorneys alike, the message is straightforward: when mediation is handled correctly, it can create a private and productive setting for settlement. When confidentiality is understood from the start, parties are more willing to engage openly—and that often makes resolution possible.
If you are considering mediation in a personal injury, employment, consumer, or other civil case, careful preparation and a clear understanding of California’s confidentiality rules can make a meaningful difference.
Tionna Carvalho, Esq.Full-time mediator (WDRC)