السعة القصوى في شهادة السلامة.

Not necessarily. By itself, it is most naturally read as a noun phrase or a heading/label, not a full sentence.

A full sentence in Arabic usually needs:

• a verb, or
• a complete nominal statement with a clear subject and predicate.

Here, السعة القصوى means the maximum capacity, and في شهادة السلامة means in/on the safety certificate. So the whole expression works well as something like a form label, title, or item in a document:

• the maximum capacity in the safety certificate
• maximum capacity on the safety certificate

In real documents, Arabic often uses short phrases like this instead of full sentences.

السعة means capacity.

It comes from the root related to width, spaciousness, or capacity. In practical contexts, it often means:

• capacity
• volume
• how many people or how much something can hold

Because it has الـ, it is definite:

• السعة = the capacity

In this phrase, it is the noun being described by القصوى.

القصوى means maximum, utmost, or highest here.

It is the feminine form of الأقصى. Arabic adjectives must agree with the noun they describe in gender, number, and definiteness.

Since السعة is a feminine singular noun, the adjective must also be feminine singular:

• masculine: الأقصى
• feminine: القصوى

So:

• السعة القصوى = the maximum capacity

This is normal adjective agreement in Arabic.

The final ى is called alif maqṣūra. It looks like ى but represents a final long ā sound.

So القصوى is pronounced roughly:

• al-quṣwā

This spelling is simply part of the word’s standard form. It does not mean the word is masculine or feminine by itself; it is just how this adjective is written.

A learner should recognize:

• القصوى = feminine form
• final ى = long ā sound

Because this is a noun plus adjective construction, and in Arabic the adjective must match the noun in definiteness.

So:

• السعة = the capacity
• القصوى = the maximum

Together:

• السعة القصوى = the maximum capacity

If the noun were indefinite, the adjective would also be indefinite:

• سعة قصوى = a maximum capacity or maximum capacity in a more general sense

This is an important rule: adjectives in Arabic agree with the noun in:

• definiteness
• gender
• number
• case

شهادة السلامة is an iḍāfa construction, often called a genitive construction or possessive construction.

It literally means:

• certificate of safety

Structure:

• شهادة = certificate
• السلامة = safety

In an iḍāfa:

1. the first noun usually does not take الـ
2. the second noun often makes the whole phrase definite if it is definite

So:

• شهادة سلامة = a safety certificate
• شهادة السلامة = the safety certificate or certificate of safety, depending on context

This is one of the most common structures in Arabic.

Because in an iḍāfa construction, the first noun normally does not take الـ.

So Arabic says:

• شهادة السلامة

not:

• الشهادة السلامة for this meaning

The definiteness comes from the whole construction, especially from the second noun if it is definite.

Compare:

• بيت الرجل = the man’s house
• باب السيارة = the car door
• شهادة السلامة = the safety certificate

This is a very important Arabic pattern.

في usually means in, but in many contexts it can also be understood naturally in English as on when talking about documents, forms, or written records.

So:

• في شهادة السلامة literally: in the safety certificate
• natural English: on the safety certificate or in the safety certificate

Arabic often uses في more broadly than English in. With documents, it can mean something like:

• contained in
• stated in
• listed in

So this usage is normal.

A careful pronunciation would be:

as-siʿatu l-quṣwā fī shahādati s-salāmah

A more pause-style pronunciation, which is common when reading a heading, is:

as-siʿa al-quṣwā fī shahādat as-salāma

A few pronunciation notes:

• السعة: the ع is a deep throat consonant
• القصوى: q is deeper than English k
• شهادة: the final ة is usually pronounced -a in pause
• السلامة: the s is clear, and the word ends in -a in pause

If fully vocalized as a standalone phrase, a common form would be:

السعةُ القصوى في شهادةِ السلامةِ

Why?

• السعةُ: likely nominative as a heading or citation form
• القصوى: adjective matching السعة
• في makes the following noun genitive:
  • شهادةِ
• in the iḍāfa, the second noun is also genitive:
  • السلامةِ

In normal everyday Arabic writing, these short vowels are usually omitted, so learners mostly see:

السعة القصوى في شهادة السلامة

The final ة is called tāʾ marbūṭa.

Its pronunciation depends on position:

1. At pause (when stopping on the word), it is usually pronounced -a

   • شهادة → shahāda
   • السلامة → as-salāma

2. When connected grammatically, it is pronounced -t

   • شهادة السلامة → shahādat as-salāma
   • في شهادة السلامة → fī shahādat as-salāma

This is why learners may hear both -a and -at from the same written ending.

Yes, depending on context.

السعة is a broad word meaning capacity, but in practical settings it can refer to:

• passenger capacity
• seating capacity
• occupancy limit
• load capacity

So if this appears on a building certificate, vehicle document, or safety form, a more natural English translation might be:

• maximum occupancy
• maximum permitted capacity
• maximum capacity

The exact English wording depends on what the certificate is about.